Difference between revisions of "Skull Cavern"

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[[File:skullkeyentrance.jpg|thumb|right|Skull Cavern Entrance]]
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[[File:Skullkeyentrance.jpg|thumb|right|340px|Skull Cavern Entrance]]
[[File:shaft.jpg|thumb|right|A shaft for faster descending]]
+
:''For ladder/shaft spawn rates, special monster drops, and the contents of crates and barrels, see [[The Mines]].''
The '''Skull Cavern''' is located in the northwest area of [[the Desert]]. It is initially locked and requires the [[Skull Key]] to gain access. After entering the Cavern for the first time, a letter is received on the following day, from [[Mr. Qi]]. The letter begins the quest [[Quests#Qi's Challenge|Qi's Challenge]], which is completed by reaching floor 25 in the Skull Cavern. Completing the quest awards {{price|10000}} (Delivered by mail the following day).  
+
The '''Skull Cavern''' is located in the northwest area of [[the Desert]]. It is initially locked and requires the [[Skull Key]] to gain access.
  
There is no limit to the number of floors, or levels, in the Skull Cavern (at least until the integer limit of 2147483647 is reached). Similar to [[the Mines]], the player advances through floors in the Skull Cavern by finding a ladder on each floor, either by mining rocks or defeating enemies. The player can sometimes find a shaft, or hole, which makes it possible to skip 3-15 floors. Jumping down the shaft causes [[health]] damage equal to 3x the number of levels skipped (although jumping down a shaft will never reduce health to less than 1).  Unlike the Mines, there is no elevator to save progress, but on every floor there is a ladder at the starting point where you can leave the Skull Cavern. Each visit must start again from the first floor. If [[The Player|the player]] runs out of health or passes out while exploring Skull Cavern, they will wake up sometime later on the same day, in [[Harvey's Clinic]]. A fee of {{price|1000}} will be deducted for emergency surgery. Some items may also be lost.
+
==Overview==
 +
[[File:Shaft.jpg|thumb|right|A shaft for faster descending]]
 +
There is no practical limit to the number of floors (sometimes called levels) in the Skull Cavern.<ref name="integerlimit" /> Similar to [[the Mines]], [[the Player]] advances through floors in the Skull Cavern by finding a ladder on each floor, either by mining rocks or defeating enemies.  
  
Every ten floors the chance to find [[Iridium Ore]] increases significantly. The monsters in the Cavern also have a chance to drop ore and [[Iridium Bar]]s. It is a good idea to bring the [[Lava Katana]] or [[Galaxy Sword]], as enemies are particularly strong. High [[Luck]] increases the frequency of ore veins and the appearance of ladders/holes.  Since the frequency of [[Iridium Ore]] increases for every 10 floors descended into the Cavern, rapid descent is often more efficient for acquiring ore than thorough exploration. With a full inventory of stone, it's possible to craft [[staircase]]s to descend to floor 300+.
+
Unlike the Mines, there is no elevator to save progress, but on every floor there is a ladder at the starting point where the Player can leave the Skull Cavern. Each visit must start again from the first floor.
  
The plaques that can be occasionally found on the walls contain [[Secrets#Skull Cavern Plaques|enciphered messages]].
+
When ladders to the next floor appear from breaking rocks, 20% of the time they will appear as a shaft (or hole) instead of a ladder. Shafts make it possible to travel 3-15 floors at a time. The number of floors dropped is based on an integer x between 3 and 8 inclusive, chosen with equal probability, with a 90% chance that the player drops x floors and a 10% chance that the player drops 2x-1 floors. The amount of floors dropped is predetermined based on the mine floor, game day, and Random Seed. In particular, [[Luck]] does not affect the chances of jumping down a certain number of floors. This also means that if multiple shafts spawn on the same floor, they will all drop the player the same number of floors, so it does not matter which one is chosen. Jumping down the shaft causes [[Health]] damage equal to 3x the number of floors skipped (although jumping down a shaft will never reduce health to less than 1). Note that if a shaft above floor 100 is calculated to drop the player past floor 100, it will be modified to only drop the player to floor 100.<ref name="shaftlevels"/>
  
==Preparation==
+
If the player runs out of [[health]] while exploring Skull Cavern, they will wake up sometime later on the same day in [[Harvey's Clinic]]. A fee of {{Price|1000}} will be deducted for emergency surgery. Several items may also be lost. Passing out at 2:00 am will cause the player to lose {{Price|1000}} or 10% of funds, whichever is less.
 +
 
 +
===Iridium===
 +
The chance to find [[Iridium Ore]] increases slowly and steadily as the player descends into the Skull Cavern, rapidly increasing from floor 10 to 100. See [[Skull Cavern/Ore Distribution]] for more details.
 +
 
 +
The monsters in the Skull Cavern also have a chance to drop [[Iridium Ore]] and [[Iridium Bar]]s, as well as [[The Mines#Special Items|special items]]. It can be a good idea to bring the [[Lava Katana]] or [[Galaxy Sword]], as enemies are particularly strong.
 +
 
 +
High [[Luck]] increases the frequency of ladders/shafts. Rapid descent to floors with a higher chance of spawning [[Mining#Iridium Node|Iridium Nodes]] is often more efficient for acquiring ore than thorough exploration. [[Staircase]]s can also be stacked, so a single inventory slot can hold 999 staircases. Even blindly placing staircases will take ''some'' time though; the lower the player descends with staircases, the less time they have to explore the Skull Cavern.
 +
 
 +
===Qi's Challenge===
 +
After entering the Cavern for the first time, a letter will be received on the following day from [[Mr. Qi]]. The letter begins the quest [[Quests#Qi's Challenge|Qi's Challenge]], which is completed by reaching floor 25 in the Skull Cavern. Completing the quest awards {{Price|10000}}, delivered by mail the following day. If the player reaches floor 25 of the Skull Cavern during the first visit, the quest will automatically be fulfilled the next day.
 +
 
 +
===Qi's Hungry Challenge===
 +
[[Quests#Qi's_Hungry_Challenge|"Qi's Hungry Challenge"]] is a possible, repeatable Special Order, that may be accepted in [[Qi's Walnut Room]] on [[Ginger Island]]. It is completed by reaching floor 100 of the Skull Cavern within the given time limit. While this quest is active, no food or drink items can be consumed while the player is in the Skull Cavern. Buffs from food/drink before entering the Skull Cavern will stay active.
 +
 
 +
While this quest is active, Big Slimes may occasionally have hearts that will give 10 [[health]] points when slain. Another strategy to regain health without eating is to equip one or more [[Vampire Ring]]s or to use a weapon with the Vampiric enchantment.
 +
 
 +
The use of [[staircase]]s is permitted. Completing the quest awards {{price|25|gem|class=inline}} [[Qi Gem]]s.
 +
 
 +
===Skull Cavern Invasion===
 +
The [[Quests#Skull Cavern Invasion|"Skull Cavern Invasion"]] is a possible, repeatable Special Order, that may be accepted in [[Qi's Walnut Room]] on [[Ginger Island]]. It is completed by reaching floor 100 of the Skull Cavern within the given time limit. While the quest is active, stronger variations of [[monsters]] occupy the Cavern; similarly to [[The Mines#Shrine of Challenge|the Dangerous Mines]]. [[Mining#Radioactive Node|Radioactive Nodes]] can also spawn here, like the Dangerous Mines.
 +
 
 +
The use of [[staircase]]s is permitted. Completing the quest awards {{price|40|gem|class=inline}} [[Qi Gem]]s. After completing the challenge for the first time, the statue at the Cavern's entrance can be used to toggle hard mode in the cavern.
 +
 
 +
==Time==
 +
Time runs more slowly in Skull Cavern than elsewhere in the game: whereas one hour of game time normally lasts 43 seconds, in Skull Cavern one hour lasts 54 seconds (25% longer). However, time reverts to normal 43-second hours in multiplayer games and on [[#Prehistoric Floors|Prehistoric Floors]].<ref name="time" />
 +
 
 +
This has two main implications:
 +
* Players have more real-time available before the end of the day, and should be able to descend deeper than otherwise.
 +
* The game-time duration of any [[Buffs|buff]] is decreased. 
 +
 
 +
This adjustment in timing has no effect upon other aspects of the game, such as [[Crafting#Artisan Equipment|equipment]] processing times.  For example, [[Honey]] placed in a [[Keg]] at noon is ready with [[Mead]] at 10 pm even if the player spends most of that time in the Skull Cavern.
 +
 
 +
==Strategy==
 
===Food===
 
===Food===
Shown below are foods with [[buffs]] that are useful when exploring the Skull Cavern.  Note that eating a food with buffs will wipe out any active buffs and replace them with the buffs from the newly eaten food. If the newly eaten food has no buffs, the existing buffs will remain in effect.
 
  
Duration of buffs for food lowers as the day progresses. For example, if Crab Cakes are eaten early in the day their duration is 16+ minutes. If eaten at 10pm it only lasts 2-3 minutes.
+
Shown below are foods with [[Buffs]] that are useful when exploring the Skull Cavern. Note that eating a food with buffs will wipe out any active buffs and replace them with the buffs from the newly eaten food. If the newly eaten food has no buffs, the existing buffs will remain in effect. [[Coffee]], [[Triple Shot Espresso]] and [[Ginger Ale]] are an exception to this rule; they will stack with other food buffs (but not each other).
 
{{#lst:The Mines|usefulMineFood}}<!--Transcluded from The Mines page-->
 
{{#lst:The Mines|usefulMineFood}}<!--Transcluded from The Mines page-->
  
 
===Explosives===
 
===Explosives===
[[Crafting#Bombs|Bombs]] make quick work of densely-clustered stones and ore veins.  They're also necessary for permanently defeating [[Mummy|Mummies]].
 
* Buy [[Cherry Bomb]]s from the [[Dwarf]] for {{price|300}} or craft them with 4 [[Copper Ore]] and 1 [[Coal]].
 
* Buy [[Bomb]]s from the [[Dwarf]] for {{price|600}} or craft them with 4 [[Iron Ore]] and 1 [[Coal]].
 
* Buy [[Mega Bomb]]s from the [[Dwarf]] for {{price|1000}} or craft them with 4 [[Gold Ore]], 1 [[Solar Essence]], and 1 [[Void Essence]].
 
  
The [[Slingshot]]'s [[Explosive Ammo]] is also effective in dealing with small groups of stones, [[Iridium Ore]] deposits, and incapacitated [[Mummy|Mummies]]. Loading the Slingshot with [[Gold Ore]] deals substantial damage, making it potentially useful for dispatching tough targets. Explosive ammo can be crafted or bought at the [[Adventurer's Guild]] for {{Price|100}}.
+
[[Crafting#Bombs|Bombs]] make quick work of densely-clustered stones and ore veins. They can also be used for permanently defeating [[Mummy|Mummies]].
  
===Staircase===
+
Bombs can be [[Crafting#Bombs|crafted]], or purchased from [[Dwarf]]:
*[[Staircase]]s can be used for rapid descent or skipping troublesome floors. Since staircases do not stack, it can be more space-efficient to bring plenty of [[Stone]] and craft the staircases as needed.
+
{| class="wikitable"
 +
! Image !! Name !! Ingredients !! Purchase Price
 +
|-
 +
| [[File:Cherry Bomb.png|center|link=]] || [[Cherry Bomb]] || {{name|Copper Ore|4}}{{name|Coal|1}} || {{price|300}}
 +
|-
 +
| [[File:Bomb.png|center|link=]] || [[Bomb]] || {{name|Iron Ore|4}}{{name|Coal|1}} || {{price|600}}
 +
|-
 +
| [[File:Mega Bomb.png|center|link=]] || [[Mega Bomb]] || {{name|Gold Ore|4}}{{name|Solar Essence|1}}{{name|Void Essence|1}} || {{price|1600}}
 +
|}
 +
 
 +
The [[Slingshot]]'s [[Explosive Ammo]] is also effective in dealing with small groups of stones, [[Iridium Ore]] deposits, and incapacitated [[Mummy|Mummies]]. Loading the Slingshot with [[Gold Ore]] deals substantial damage, making it potentially useful for dispatching tough targets. Explosive ammo can be crafted, or bought at the [[Adventurer's Guild]] for {{Price|300}}.
 +
 
 +
===Staircases===
 +
 
 +
[[Staircase]]s can be used for rapid descent or skipping troublesome floors. If the player has one or more [[Crystalarium]]s, they can be used to produce [[Jade]] which can be traded for Staircases with the [[Desert Trader]] on Sundays.
  
 
===Rings===
 
===Rings===
*Several [[Rings]] may assist in exploring the Skull Cavern.  See the [[Rings]] page for full descriptions.
+
 
 +
Several [[Rings]] may assist in exploring the Skull Cavern.  See the [[Rings]] page for full descriptions.
  
 
===Warp Totems===
 
===Warp Totems===
*A [[Warp Totem]] can be used to make a quick exit if supplies are running low or the day is almost over.
+
 
 +
A [[Warp Totem]] can be used to make a quick exit if supplies are running low or the day is almost over to avoid the fee of up to {{Price|1000}} for passing out at 2:00 am.
 +
 
 +
A [[Warp Totem: Desert]] (or [[Desert Obelisk]]) can be used to access the Desert about 4 hours earlier than [[Pam]] arrives at the [[Bus Stop]].
  
 
==Monsters==
 
==Monsters==
Line 43: Line 91:
 
|[[File:Armored Bug.png|center|36px]]
 
|[[File:Armored Bug.png|center|36px]]
 
|[[Armored Bug]]
 
|[[Armored Bug]]
|
+
|1
 
|8
 
|8
|Cannot be killed.
+
|Can only be killed while using a weapon with the [[Forge#Combat enchantments|bug killer enchantment]].
 
|-
 
|-
|[[File:Big Slime Sprite.png|center|36px]]
+
|[[File:Big Purple Slime.png|center|36px]]
 
|[[Slimes#Big Slimes|Big Slime]]
 
|[[Slimes#Big Slimes|Big Slime]]
 
|60
 
|60
 
|5
 
|5
|Splits into smaller [[Slimes]] when killed. Big Slimes are usually purple in the Skull Cavern.
+
|A chance to split into smaller [[Slimes]] when killed. [[Slimes#Big Slimes|Big Slimes]] are purple in the Skull Cavern.
 
|-
 
|-
 
|[[File:Purple Slime.png|center|36px]]
 
|[[File:Purple Slime.png|center|36px]]
Line 57: Line 105:
 
|410
 
|410
 
|28
 
|28
|Can drop [[Iridium Ore]], [[Iridium Bar]]
+
|Can drop [[Iridium Ore]] and [[Iridium Bar]]s.
 
|-
 
|-
 
|[[File:Lava Bat.png|center|36px]]
 
|[[File:Lava Bat.png|center|36px]]
Line 63: Line 111:
 
|80
 
|80
 
|15
 
|15
|Appears rarely; flies.
+
|Only appears on floors 20 and 40; flies.
 
|-
 
|-
 
|[[File:Mummy.png|center|36px]]
 
|[[File:Mummy.png|center|36px]]
Line 69: Line 117:
 
|260
 
|260
 
|30
 
|30
|Needs to be finished with a [[Crafting#Bombs|bomb]] of any type after being knocked out with other weapons. If a bomb does enough damage to knock the Mummy out, it will also destroy it.
+
|Appears on Mummy floors. Needs to be finished with a [[Crafting#Bombs|bomb]] of any type after being knocked out with other weapons. If a bomb does enough damage to knock the Mummy out, it will also destroy it. Using a weapon with the [[Forge#Combat enchantments|Crusader enchantment]] stops them from reviving. Frequently drops [[Solar Essence]] when slain, and occasionally drops [[Cloth]].
 
|-
 
|-
 
|[[File:Serpent.png|center|48px]]
 
|[[File:Serpent.png|center|48px]]
Line 75: Line 123:
 
|150
 
|150
 
|23
 
|23
|Moves quickly; default flying enemy.
+
|Moves quickly; default flying enemy. Frequently drops [[Void Essence]]. Occasionally drops [[Spicy Eel]] and [[Bomb]]s.
 
|-
 
|-
 
|[[File:Iridium Bat.png|center|36px]]
 
|[[File:Iridium Bat.png|center|36px]]
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|300
 
|300
 
|30
 
|30
|Appears at level 50+. Very high HP and Damage.  
+
|Appears at floor 51+ and on prehistoric floors. Very high HP and Damage. Frequently drops [[Iridium Ore]] and [[Solar Essence]].
 
|-
 
|-
 
|[[File:Iridium Crab.png|center|32px]]
 
|[[File:Iridium Crab.png|center|32px]]
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|240
 
|240
 
|15
 
|15
|Appears at level 26+.
+
|Appears at floor 26+. Can drop [[Iridium Ore]] and [[Crab Cakes]].
 
|-
 
|-
 
|[[File:Carbon Ghost.png|center|36px]]
 
|[[File:Carbon Ghost.png|center|36px]]
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|190
 
|190
 
|25
 
|25
|May appear on Mummy levels.
+
|Can appear on Mummy floors. Frequently drop [[Omni Geode]]s. May occasionally drop [[Refined Quartz]].
 +
|-
 +
|[[File:Pepper Rex.png|center|54px]]
 +
|[[Pepper Rex]]
 +
|300
 +
|15
 +
|Appears mainly on prehistoric floors; breathes fire. Drops [[Dinosaur Egg]] or one of 3 prehistoric [[Artifacts]].
 +
|-
 +
|[[File:Mutant Fly.png|center|36px]]
 +
|[[Mutant Fly]]
 +
|66
 +
|12
 +
|Can appear on prehistoric floors.
 +
|-
 +
|[[File:Armored Bug Dangerous.png|center|36px]]
 +
|[[Armored Bug (dangerous)]]
 +
|250
 +
|20-27
 +
|Only appears when the Skull Cavern is in a [[#Skull Cavern Invasion|"dangerous" state]].
 +
|-
 +
|[[File:Mummy Dangerous.png|center|36px]]
 +
|[[Mummy (dangerous)]]
 +
|445
 +
|38-55
 +
|Only appears when the Skull Cavern is in a [[#Skull Cavern Invasion|"dangerous" state]].
 +
|-
 +
|[[File:Royal Serpent.png|center|36px]]
 +
|[[Royal Serpent]]
 +
|300-1050
 +
|32-48
 +
|Only appears when the Skull Cavern is in a [[#Skull Cavern Invasion|"dangerous" state]].
 +
|-
 +
|[[File:Purple Slime Dangerous.png|center|36px]]
 +
|[[Slimes|Purple Slime (dangerous)]]
 +
|403
 +
|20-30
 +
|Only appears when the Skull Cavern is in a [[#Skull Cavern Invasion|"dangerous" state]].
 +
|-
 
|}
 
|}
 +
 +
==Prehistoric Floors==
 +
:''See also: [[The Mines#Infested Floors]]''
 +
[[File:Prehistoric Level.png|180px|thumb|right|A Prehistoric Floor]]
 +
Prehistoric floors are a type of infested floor containing mainly [[Pepper Rex]] monsters. [[Mutant Fly|Mutant Flies]] and [[Bats|Iridium Bats]] can also spawn and attack the player there. [[Dinosaur Egg]]s and [[Fiddlehead Fern]]s can be foraged on Prehistoric floors. Foliage on this floor has a chance to yield an [[Ancient Seed]] when cut down. There is a ~2.2% chance to encounter a prehistoric floor at and below floor 7.<ref name="dinofloor" />
 +
 +
Because prehistoric floors are infested, all enemies on this floor must be killed before a ladder appears.
 +
{{Clear}}
  
 
==Treasure Rooms==
 
==Treasure Rooms==
Small rooms containing treasure chests, similar to those in [[The Mines]], can randomly appear at level 10+. [[Luck|Daily luck]] and Luck [[Buffs]] affect the chance to find Treasure Rooms. Obtaining the [[Special Charm]] also increases the chance to find Treasure Rooms.
+
{{Spoiler}}
 +
Small rooms containing treasure chests, similar to those in [[the Mines]], can randomly appear at floors 10+. Daily [[luck]] and luck [[buffs]] affect the chance to find Treasure Rooms.
 +
 
 +
The probability of encountering one when entering a new floor equals to <code>0.01 + (Daily Luck / 10) + (Luck Buffs / 100)</code>.<ref name="dinofloor" /> This means Treasure Rooms have a base chance of 1% to appear with daily luck increasing the chance by 1% at best or decreasing by 1% at worst, with the [[Special Charm]] adding 0.25%, and food buffs adding 1% for every point of luck. In multiplayer, the luck values taken into account are the average of luck stats of players present in the Skull Cavern.
  
Below is a collapsable table of all possible treasures that can be randomly found inside Treasure Chests in the Skull Cavern.
+
Floor 100 of the Skull Cavern is guaranteed to contain a treasure chest. The only exception is during the run where the player completes the [[#Secret|secret]]. Floors 200 and 300 of the Skull Cavern are also guaranteed to contain 2 and 3 treasure chests, respectively.
  
 +
Below is a table of all possible treasures that can be randomly found inside Treasure Chests in the Skull Cavern.
 
{|class="wikitable sortable mw-collapsible mw-collapsed"
 
{|class="wikitable sortable mw-collapsible mw-collapsed"
|-
 
 
!class="unsortable"|Image
 
!class="unsortable"|Image
 
!Name
 
!Name
!Number in Chest&nbsp;
+
!Quantity&nbsp;
 +
!Chance <ref name="treasureroomchance" />&nbsp;
 
|-
 
|-
 
|[[File:Mega Bomb.png|24px|center]]
 
|[[File:Mega Bomb.png|24px|center]]
 
|[[Mega Bomb]]
 
|[[Mega Bomb]]
 
|5
 
|5
 +
|1/26
 
|-
 
|-
 
|[[File:Bomb.png|24px|center]]
 
|[[File:Bomb.png|24px|center]]
 
|[[Bomb]]
 
|[[Bomb]]
 
|10
 
|10
 +
|1/26
 
|-
 
|-
 
|[[File:Cactus Seeds.png|24px|center]]
 
|[[File:Cactus Seeds.png|24px|center]]
 
|[[Cactus Seeds]]
 
|[[Cactus Seeds]]
 
|15
 
|15
 +
|1/26
 
|-
 
|-
 
|[[File:Life Elixir.png|24px|center]]
 
|[[File:Life Elixir.png|24px|center]]
 
|[[Life Elixir]]
 
|[[Life Elixir]]
 
|2-4
 
|2-4
 +
|1/26
 
|-
 
|-
 
|[[File:Omni Geode.png|24px|center]]
 
|[[File:Omni Geode.png|24px|center]]
 
|[[Omni Geode]]
 
|[[Omni Geode]]
 
|5
 
|5
 +
|1/13 (if Mystery Boxes aren't available)<br>1/26 (if Mystery Boxes are available)<ref name="mysteryboxavailable" />
 
|-
 
|-
 
|[[File:Warp Totem Farm.png|24px|center]]
 
|[[File:Warp Totem Farm.png|24px|center]]
 
|[[Warp Totem: Farm]]
 
|[[Warp Totem: Farm]]
 
|5
 
|5
 +
|1/26
 
|-
 
|-
 
|[[File:Rain Totem.png|24px|center]]
 
|[[File:Rain Totem.png|24px|center]]
 
|[[Rain Totem]]
 
|[[Rain Totem]]
 
|1-3
 
|1-3
 +
|1/26
 
|-
 
|-
 
|[[File:Apple Sapling.png|24px|center]]
 
|[[File:Apple Sapling.png|24px|center]]
 
|[[Apple Sapling]]
 
|[[Apple Sapling]]
 
|1
 
|1
 +
|1/156
 
|-
 
|-
 
|[[File:Apricot Sapling.png|24px|center]]
 
|[[File:Apricot Sapling.png|24px|center]]
 
|[[Apricot Sapling]]
 
|[[Apricot Sapling]]
 
|1
 
|1
 +
|1/156
 
|-
 
|-
 
|[[File:Cherry Sapling.png|24px|center]]
 
|[[File:Cherry Sapling.png|24px|center]]
 
|[[Cherry Sapling]]
 
|[[Cherry Sapling]]
 
|1
 
|1
 +
|1/156
 
|-
 
|-
 
|[[File:Orange Sapling.png|24px|center]]
 
|[[File:Orange Sapling.png|24px|center]]
 
|[[Orange Sapling]]
 
|[[Orange Sapling]]
 
|1
 
|1
 +
|1/156
 
|-
 
|-
 
|[[File:Peach Sapling.png|24px|center]]
 
|[[File:Peach Sapling.png|24px|center]]
 
|[[Peach Sapling]]
 
|[[Peach Sapling]]
 
|1
 
|1
 +
|1/156
 
|-
 
|-
 
|[[File:Pomegranate Sapling.png|24px|center]]
 
|[[File:Pomegranate Sapling.png|24px|center]]
 
|[[Pomegranate Sapling]]
 
|[[Pomegranate Sapling]]
 
|1
 
|1
 +
|1/156
 
|-
 
|-
 
|[[File:Iridium Sprinkler.png|24px|center]]
 
|[[File:Iridium Sprinkler.png|24px|center]]
 
|[[Iridium Sprinkler]]
 
|[[Iridium Sprinkler]]
 
|1-2
 
|1-2
 +
|1/26
 
|-
 
|-
 
|[[File:Quality Sprinkler.png|24px|center]]
 
|[[File:Quality Sprinkler.png|24px|center]]
 
|[[Quality Sprinkler]]
 
|[[Quality Sprinkler]]
 
|4
 
|4
 +
|1/26
 
|-
 
|-
 
|[[File:Parsnip Seeds.png|24px|center]]
 
|[[File:Parsnip Seeds.png|24px|center]]
 
|[[Parsnip Seeds]]
 
|[[Parsnip Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Bean Starter.png|24px|center]]
 
|[[File:Bean Starter.png|24px|center]]
 
|[[Bean Starter]]
 
|[[Bean Starter]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Cauliflower Seeds.png|24px|center]]
 
|[[File:Cauliflower Seeds.png|24px|center]]
 
|[[Cauliflower Seeds]]
 
|[[Cauliflower Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Potato Seeds.png|24px|center]]
 
|[[File:Potato Seeds.png|24px|center]]
 
|[[Potato Seeds]]
 
|[[Potato Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Garlic Seeds.png|24px|center]]
 
|[[File:Garlic Seeds.png|24px|center]]
 
|[[Garlic Seeds]]
 
|[[Garlic Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Kale Seeds.png|24px|center]]
 
|[[File:Kale Seeds.png|24px|center]]
 
|[[Kale Seeds]]
 
|[[Kale Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Rhubarb Seeds.png|24px|center]]
 
|[[File:Rhubarb Seeds.png|24px|center]]
 
|[[Rhubarb Seeds]]
 
|[[Rhubarb Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Melon Seeds.png|24px|center]]
 
|[[File:Melon Seeds.png|24px|center]]
 
|[[Melon Seeds]]
 
|[[Melon Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Tomato Seeds.png|24px|center]]
 
|[[File:Tomato Seeds.png|24px|center]]
 
|[[Tomato Seeds]]
 
|[[Tomato Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Blueberry Seeds.png|24px|center]]
 
|[[File:Blueberry Seeds.png|24px|center]]
 
|[[Blueberry Seeds]]
 
|[[Blueberry Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Pepper Seeds.png|24px|center]]
 
|[[File:Pepper Seeds.png|24px|center]]
 
|[[Pepper Seeds]]
 
|[[Pepper Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Wheat Seeds.png|24px|center]]
 
|[[File:Wheat Seeds.png|24px|center]]
 
|[[Wheat Seeds]]
 
|[[Wheat Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Radish Seeds.png|24px|center]]
 
|[[File:Radish Seeds.png|24px|center]]
 
|[[Radish Seeds]]
 
|[[Radish Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Red Cabbage Seeds.png|24px|center]]
 
|[[File:Red Cabbage Seeds.png|24px|center]]
 
|[[Red Cabbage Seeds]]
 
|[[Red Cabbage Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Starfruit Seeds.png|24px|center]]
 
|[[File:Starfruit Seeds.png|24px|center]]
 
|[[Starfruit Seeds]]
 
|[[Starfruit Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Corn Seeds.png|24px|center]]
 
|[[File:Corn Seeds.png|24px|center]]
 
|[[Corn Seeds]]
 
|[[Corn Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Eggplant Seeds.png|24px|center]]
 
|[[File:Eggplant Seeds.png|24px|center]]
 
|[[Eggplant Seeds]]
 
|[[Eggplant Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Artichoke Seeds.png|24px|center]]
 
|[[File:Artichoke Seeds.png|24px|center]]
 
|[[Artichoke Seeds]]
 
|[[Artichoke Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Pumpkin Seeds.png|24px|center]]
 
|[[File:Pumpkin Seeds.png|24px|center]]
 
|[[Pumpkin Seeds]]
 
|[[Pumpkin Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Bok Choy Seeds.png|24px|center]]
 
|[[File:Bok Choy Seeds.png|24px|center]]
 
|[[Bok Choy Seeds]]
 
|[[Bok Choy Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Yam Seeds.png|24px|center]]
 
|[[File:Yam Seeds.png|24px|center]]
 
|[[Yam Seeds]]
 
|[[Yam Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Cranberry Seeds.png|24px|center]]
 
|[[File:Cranberry Seeds.png|24px|center]]
 
|[[Cranberry Seeds]]
 
|[[Cranberry Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Beet Seeds.png|24px|center]]
 
|[[File:Beet Seeds.png|24px|center]]
 
|[[Beet Seeds]]
 
|[[Beet Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Spring Seeds.png|24px|center]]
 
|[[File:Spring Seeds.png|24px|center]]
 
|[[Spring Seeds]]
 
|[[Spring Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Summer Seeds.png|24px|center]]
 
|[[File:Summer Seeds.png|24px|center]]
 
|[[Summer Seeds]]
 
|[[Summer Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Fall Seeds.png|24px|center]]
 
|[[File:Fall Seeds.png|24px|center]]
 
|[[Fall Seeds]]
 
|[[Fall Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Winter Seeds.png|24px|center]]
 
|[[File:Winter Seeds.png|24px|center]]
 
|[[Winter Seeds]]
 
|[[Winter Seeds]]
 
|5-20
 
|5-20
 +
|1/702
 
|-
 
|-
 
|[[File:Cherry Bomb.png|24px|center]]
 
|[[File:Cherry Bomb.png|24px|center]]
 
|[[Cherry Bomb]]
 
|[[Cherry Bomb]]
 
|15
 
|15
 +
|1/26
 
|-
 
|-
 
|[[File:Red Slime Egg.png|24px|center]]
 
|[[File:Red Slime Egg.png|24px|center]]
 
|[[Slime Egg|Red Slime Egg]]
 
|[[Slime Egg|Red Slime Egg]]
 
|1
 
|1
 +
|1/26
 
|-
 
|-
 
|[[File:Purple Slime Egg.png|24px|center]]
 
|[[File:Purple Slime Egg.png|24px|center]]
 
|[[Slime Egg|Purple Slime Egg]]
 
|[[Slime Egg|Purple Slime Egg]]
 
|1
 
|1
 +
|1/26
 
|-
 
|-
 
|[[File:Energy Tonic.png|24px|center]]
 
|[[File:Energy Tonic.png|24px|center]]
 
|[[Harvey's Clinic#Medical Supplies|Energy Tonic]]
 
|[[Harvey's Clinic#Medical Supplies|Energy Tonic]]
 
|2-4
 
|2-4
 +
|1/26
 
|-
 
|-
 
|[[File:Iridium Bar.png|24px|center]]
 
|[[File:Iridium Bar.png|24px|center]]
 
|[[Iridium Bar]]
 
|[[Iridium Bar]]
 
|2-3
 
|2-3
 +
|1/26
 
|-
 
|-
 
|[[File:Autumn's Bounty.png|24px|center]]
 
|[[File:Autumn's Bounty.png|24px|center]]
 
|[[Autumn's Bounty]]
 
|[[Autumn's Bounty]]
 
|5
 
|5
 +
|1/260
 
|-
 
|-
 
|[[File:Pumpkin Soup.png|24px|center]]
 
|[[File:Pumpkin Soup.png|24px|center]]
 
|[[Pumpkin Soup]]
 
|[[Pumpkin Soup]]
 
|5
 
|5
 +
|1/260
 
|-
 
|-
 
|[[File:Super Meal.png|24px|center]]
 
|[[File:Super Meal.png|24px|center]]
 
|[[Super Meal]]
 
|[[Super Meal]]
 
|5
 
|5
 +
|1/260
 
|-
 
|-
 
|[[File:Cranberry Sauce.png|24px|center]]
 
|[[File:Cranberry Sauce.png|24px|center]]
 
|[[Cranberry Sauce]]
 
|[[Cranberry Sauce]]
 
|5
 
|5
 +
|1/260
 
|-
 
|-
 
|[[File:Stuffing.png|24px|center]]
 
|[[File:Stuffing.png|24px|center]]
 
|[[Stuffing]]
 
|[[Stuffing]]
 
|5
 
|5
 +
|1/260
 
|-
 
|-
 
|[[File:Farmer's Lunch.png|24px|center]]
 
|[[File:Farmer's Lunch.png|24px|center]]
 
|[[Farmer's Lunch]]
 
|[[Farmer's Lunch]]
 
|5
 
|5
 +
|1/260
 
|-
 
|-
 
|[[File:Survival Burger.png|24px|center]]
 
|[[File:Survival Burger.png|24px|center]]
 
|[[Survival Burger]]
 
|[[Survival Burger]]
 
|5
 
|5
 +
|1/260
 
|-
 
|-
|[[File:Dish o' The Sea.png|24px|center]]
+
|[[File:Dish O' The Sea.png|24px|center]]
|[[Dish o' The Sea]]
+
|[[Dish O' The Sea]]
 
|5
 
|5
 +
|1/260
 
|-
 
|-
 
|[[File:Miner's Treat.png|24px|center]]
 
|[[File:Miner's Treat.png|24px|center]]
 
|[[Miner's Treat]]
 
|[[Miner's Treat]]
 
|5
 
|5
 +
|1/260
 
|-
 
|-
 
|[[File:Roots Platter.png|24px|center]]
 
|[[File:Roots Platter.png|24px|center]]
 
|[[Roots Platter]]
 
|[[Roots Platter]]
 
|5
 
|5
 +
|1/260
 
|-
 
|-
 
|[[File:Prismatic Shard.png|24px|center]]
 
|[[File:Prismatic Shard.png|24px|center]]
 
|[[Prismatic Shard]]
 
|[[Prismatic Shard]]
 
|1
 
|1
 +
|1/26
 
|-
 
|-
 
|[[File:Crystalarium.png|24px|center]]
 
|[[File:Crystalarium.png|24px|center]]
 
|[[Crystalarium]]
 
|[[Crystalarium]]
 
|1
 
|1
 +
|1/26
 
|-
 
|-
 
|[[File:Seed Maker.png|24px|center]]
 
|[[File:Seed Maker.png|24px|center]]
 
|[[Seed Maker]]
 
|[[Seed Maker]]
 
|1
 
|1
 +
|1/26
 
|-
 
|-
 
|[[File:Auto-Grabber.png|24px|center]]
 
|[[File:Auto-Grabber.png|24px|center]]
 
|[[Auto-Grabber]]
 
|[[Auto-Grabber]]
 
|1
 
|1
 +
|1/26
 +
|-
 +
|[[File:Auto-Petter.png|24px|center]]
 +
|[[Auto-Petter]]
 +
|1
 +
|1/26
 
|-
 
|-
 
|[[File:Blue Cowboy Hat.png|24px|center]]
 
|[[File:Blue Cowboy Hat.png|24px|center]]
 
|[[Blue Cowboy Hat]]
 
|[[Blue Cowboy Hat]]
 
|1
 
|1
 +
|1/52
 
|-
 
|-
 
|[[File:Red Cowboy Hat.png|24px|center]]
 
|[[File:Red Cowboy Hat.png|24px|center]]
 
|[[Red Cowboy Hat]]
 
|[[Red Cowboy Hat]]
 
|1
 
|1
 +
|1/52
 +
|-
 +
|[[File:White Turban.png|24px|center]]
 +
|[[White Turban]]
 +
|1
 +
|1/26
 +
|-
 +
|[[File:Dark Cowboy Hat.png|24px|center]]
 +
|[[Dark Cowboy Hat]]
 +
|1
 +
|1/26
 +
|-
 +
|[[File:Mystery Box.png|24px|center]]
 +
|[[Mystery Box]]
 +
|5
 +
|1/26 (if available)<ref name="mysteryboxavailable" />
 +
|-
 +
|[[File:Basilisk Paw.png|24px|center]]
 +
|[[Basilisk Paw]]
 +
|1
 +
|9/200<ref name="treasureroomitemprereq" />&nbsp;
 +
|-
 +
|[[File:Fairy Box.png|24px|center]]
 +
|[[Fairy Box]]
 +
|1
 +
|9/200<ref name="treasureroomitemprereq" />&nbsp;
 +
|-
 +
|[[File:Green Frog Egg.png|24px|center]]
 +
|[[Frog Egg]]
 +
|1
 +
|9/200<ref name="treasureroomitemprereq" />&nbsp;
 +
|-
 +
|[[File:Golden Spur.png|24px|center]]
 +
|[[Golden Spur]]
 +
|1
 +
|9/200<ref name="treasureroomitemprereq" />&nbsp;
 +
|-
 +
|[[File:Ice Rod.png|24px|center]]
 +
|[[Ice Rod]]
 +
|1
 +
|9/200<ref name="treasureroomitemprereq" />&nbsp;
 +
|-
 +
|[[File:Magic Hair Gel.png|24px|center]]
 +
|[[Magic Hair Gel]]
 +
|1
 +
|9/200<ref name="treasureroomitemprereq" />&nbsp;
 +
|-
 +
|[[File:Magic Quiver.png|24px|center]]
 +
|[[Magic Quiver]]
 +
|1
 +
|9/200<ref name="treasureroomitemprereq" />&nbsp;
 +
|-
 +
|[[File:Parrot Egg.png|24px|center]]
 +
|[[Parrot Egg]]
 +
|1
 +
|9/200<ref name="treasureroomitemprereq" />&nbsp;
 +
|-
 +
|[[File:Golden Animal Cracker.png|24px|center]]
 +
|[[Golden Animal Cracker]]
 +
|1
 +
|1/50<ref name="treasureroomitemprereq" />&nbsp;
 
|}
 
|}
  
 
==Secret==
 
==Secret==
<section begin="qiskullcavern" />After reading [[Secret Notes#Secret Note #10|Secret Note #10]], the player will find [[Mr. Qi]] at level 100 of the [[Skull Cavern]]. A cutscene ensues in which:
+
<section begin="qiskullcavern" />After reading [[Secret Notes#Secret Note #10|Secret Note #10]], the player will find [[Mr. Qi]] at floor 100 of the Skull Cavern. A cutscene ensues in which:
{{collapse|content=Mr. Qi will either congratulate the player for reaching level 100 while using 10 or less [[Staircase]]s or say the player is "clever" but not "honorable" for using more than 10. In either case, he will award the player with Iridium Snake Milk, which permanently increases the player's [[Health]] by 25 points.}}
+
{{Collapse|content=Mr. Qi will either congratulate the player for reaching floor 100 while using 10 or fewer [[Staircase]]s or say the player is "clever" but not "honorable" for using more than 10. In either case, he will award the player with Iridium Snake Milk, which permanently increases the player's [[health]] by 25 points.}}
  
 
[[File:QiCutsceneSkullCavern.png|200px]]<section end="qiskullcavern" />
 
[[File:QiCutsceneSkullCavern.png|200px]]<section end="qiskullcavern" />
 +
 +
==Trivia==
 +
* The plaques that can be occasionally found on the walls contain [[Secrets#Skull Cavern Plaques|enciphered messages]].
 +
* To reach the [[#cite_note-integerlimit-1|deepest floor of Skull Cavern]], the [[Quarry Mine]] Floor would need to be bypassed, which has no ability to produce a ladder. This floor is coded as 77377, and can be found at floor 77257 of the Skull Cavern, (which counts floor 1 as floor 121 internally).<ref name="quarryMineShaft" />
 +
* Starting at floor 880, [[Bats|Iridium Bats]] will become red bats and have double health and faster speed.<ref name="deepbats" />
 +
 +
==References==
 +
<references>
 +
<ref name="integerlimit">The integer limit is 2147483647. The deepest level of Skull Cavern is 2147483527 (Because Skull Cavern is coded as floor 121 of [[the Mines]]) To reach that limit in one Stardew Valley day, the player would have to descend over 2 million floors per real-time second.</ref>
 +
<ref name="shaftlevels">See <samp>MineShaft::enterMineShaft</samp> in the game code.</ref>
 +
<ref name="time">See <samp>MineShaft::getExtraMillisecondsPerInGameMinuteForThisLocation</samp> and <samp>Game1::UpdateGameClock</samp> in the game code.</ref>
 +
<ref name="dinofloor">See <samp>MineShaft::loadLevel</samp> in the game code.</ref>
 +
<ref name="treasureroomchance">See <samp>MineShaft::getTreasureRoomItem</samp> in the game code.</ref>
 +
<ref name="treasureroomitemprereq">Only obtainable if the Combat Mastery (for [[Trinkets]]) or Farming Mastery (for [[Golden Animal Cracker]]) has been unlocked. See [[Skills|Mastery]].</ref>
 +
<ref name="mysteryboxavailable">[[Mystery Box]]es are considered available once the player has viewed the Mr. Qi plane cutscene.</ref>
 +
<ref name="quarryMineShaft">See <samp>Locations.MineShaft::quarryMineShaft</samp> in the game code.</ref>
 +
<ref name="deepbats">See <samp>StardewValley.Bats::Bat</samp> in the game code.</ref>
 +
</references>
  
 
==History==
 
==History==
{{History|1.3|Added Carbon Ghost, Iridium Bat, Iridium Crab, treasure rooms, and encounter with Mr. Qi. Removed exploit that allowed the player to avoid bomb damage by consuming food after placing a bomb.}}
+
<!--Which update changed the fact that food eaten later in the day lasted for less time?-->
 +
{{History|1.3.27|Added [[Carbon Ghost]], [[Bats|Iridium Bat]], [[Iridium Crab]], [[#Treasure Rooms|Treasure Rooms]], and encounter with [[Mr. Qi]]. Removed exploit that allowed the player to avoid bomb damage by consuming food after placing a bomb.}}
 +
{{History|1.4|Added [[Pepper Rex]]. Added [[White Turban]] to possible Treasure Room items. All players entering a shaft in [[Multiplayer]] now descend to the same floor. Qi's challenge can now be completed during the first visit to the Skull Cavern. Shafts will no longer drop the player past floor 100.}}
 +
{{History|1.5|Added [[Auto-Petter]] to possible Treasure Room items. Fixed chests spawned on certain floors being shifted down by 4 tiles. Fixed message appearing when opening a treasure room chest before opening the initial 15 [[Parsnip Seeds]] given by [[Lewis|Mayor Lewis]].}}
 +
{{History|1.5.2|Added [[Dark Cowboy Hat]] to possible Treasure Room items.}}
 +
{{History|1.5.5|Reaching floor 100 will result in a guaranteed treasure chest, except when viewing the secret cutscene.}}
 +
{{History|1.6|Additional chests added to Skull Cavern levels 200 and 300. [[Mystery Box]]es, [[Trinkets]], and the [[Golden Animal Cracker]] added to the chest loot pool. Added statue at the Cavern's entrance that can be used to toggle hard mode in the cavern after completing the Skull Cavern Invasion quest.}}
  
 
{{NavboxLocations}}
 
{{NavboxLocations}}
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[[ja:ドクロの洞窟]]
 
[[ja:ドクロの洞窟]]
 
[[ko:해골 동굴]]
 
[[ko:해골 동굴]]
[[hu:Koponya barlang]]
+
[[hu:Koponya Barlang]]
 
[[pt:Caverna da Caveira]]
 
[[pt:Caverna da Caveira]]
 
[[ru:Пещера Черепа]]
 
[[ru:Пещера Черепа]]
[[tr:Kafatası Mağarasının]]
+
[[tr:Kafatası Mağarası]]
 
[[zh:骷髅洞穴]]
 
[[zh:骷髅洞穴]]

Latest revision as of 02:54, 5 April 2024

Skull Cavern Entrance
For ladder/shaft spawn rates, special monster drops, and the contents of crates and barrels, see The Mines.

The Skull Cavern is located in the northwest area of the Desert. It is initially locked and requires the Skull Key to gain access.

Overview

A shaft for faster descending

There is no practical limit to the number of floors (sometimes called levels) in the Skull Cavern.[1] Similar to the Mines, the Player advances through floors in the Skull Cavern by finding a ladder on each floor, either by mining rocks or defeating enemies.

Unlike the Mines, there is no elevator to save progress, but on every floor there is a ladder at the starting point where the Player can leave the Skull Cavern. Each visit must start again from the first floor.

When ladders to the next floor appear from breaking rocks, 20% of the time they will appear as a shaft (or hole) instead of a ladder. Shafts make it possible to travel 3-15 floors at a time. The number of floors dropped is based on an integer x between 3 and 8 inclusive, chosen with equal probability, with a 90% chance that the player drops x floors and a 10% chance that the player drops 2x-1 floors. The amount of floors dropped is predetermined based on the mine floor, game day, and Random Seed. In particular, Luck does not affect the chances of jumping down a certain number of floors. This also means that if multiple shafts spawn on the same floor, they will all drop the player the same number of floors, so it does not matter which one is chosen. Jumping down the shaft causes Health damage equal to 3x the number of floors skipped (although jumping down a shaft will never reduce health to less than 1). Note that if a shaft above floor 100 is calculated to drop the player past floor 100, it will be modified to only drop the player to floor 100.[2]

If the player runs out of health while exploring Skull Cavern, they will wake up sometime later on the same day in Harvey's Clinic. A fee of data-sort-value="1000">Gold.png1,000g will be deducted for emergency surgery. Several items may also be lost. Passing out at 2:00 am will cause the player to lose data-sort-value="1000">Gold.png1,000g or 10% of funds, whichever is less.

Iridium

The chance to find Iridium Ore increases slowly and steadily as the player descends into the Skull Cavern, rapidly increasing from floor 10 to 100. See Skull Cavern/Ore Distribution for more details.

The monsters in the Skull Cavern also have a chance to drop Iridium Ore and Iridium Bars, as well as special items. It can be a good idea to bring the Lava Katana or Galaxy Sword, as enemies are particularly strong.

High Luck increases the frequency of ladders/shafts. Rapid descent to floors with a higher chance of spawning Iridium Nodes is often more efficient for acquiring ore than thorough exploration. Staircases can also be stacked, so a single inventory slot can hold 999 staircases. Even blindly placing staircases will take some time though; the lower the player descends with staircases, the less time they have to explore the Skull Cavern.

Qi's Challenge

After entering the Cavern for the first time, a letter will be received on the following day from Mr. Qi. The letter begins the quest Qi's Challenge, which is completed by reaching floor 25 in the Skull Cavern. Completing the quest awards data-sort-value="10000">Gold.png10,000g, delivered by mail the following day. If the player reaches floor 25 of the Skull Cavern during the first visit, the quest will automatically be fulfilled the next day.

Qi's Hungry Challenge

"Qi's Hungry Challenge" is a possible, repeatable Special Order, that may be accepted in Qi's Walnut Room on Ginger Island. It is completed by reaching floor 100 of the Skull Cavern within the given time limit. While this quest is active, no food or drink items can be consumed while the player is in the Skull Cavern. Buffs from food/drink before entering the Skull Cavern will stay active.

While this quest is active, Big Slimes may occasionally have hearts that will give 10 health points when slain. Another strategy to regain health without eating is to equip one or more Vampire Rings or to use a weapon with the Vampiric enchantment.

The use of staircases is permitted. Completing the quest awards data-sort-value="25">Qi Gem.png 25 Qi Gems.

Skull Cavern Invasion

The "Skull Cavern Invasion" is a possible, repeatable Special Order, that may be accepted in Qi's Walnut Room on Ginger Island. It is completed by reaching floor 100 of the Skull Cavern within the given time limit. While the quest is active, stronger variations of monsters occupy the Cavern; similarly to the Dangerous Mines. Radioactive Nodes can also spawn here, like the Dangerous Mines.

The use of staircases is permitted. Completing the quest awards data-sort-value="40">Qi Gem.png 40 Qi Gems. After completing the challenge for the first time, the statue at the Cavern's entrance can be used to toggle hard mode in the cavern.

Time

Time runs more slowly in Skull Cavern than elsewhere in the game: whereas one hour of game time normally lasts 43 seconds, in Skull Cavern one hour lasts 54 seconds (25% longer). However, time reverts to normal 43-second hours in multiplayer games and on Prehistoric Floors.[3]

This has two main implications:

  • Players have more real-time available before the end of the day, and should be able to descend deeper than otherwise.
  • The game-time duration of any buff is decreased.

This adjustment in timing has no effect upon other aspects of the game, such as equipment processing times. For example, Honey placed in a Keg at noon is ready with Mead at 10 pm even if the player spends most of that time in the Skull Cavern.

Strategy

Food

Shown below are foods with Buffs that are useful when exploring the Skull Cavern. Note that eating a food with buffs will wipe out any active buffs and replace them with the buffs from the newly eaten food. If the newly eaten food has no buffs, the existing buffs will remain in effect. Coffee, Triple Shot Espresso and Ginger Ale are an exception to this rule; they will stack with other food buffs (but not each other).

Image Name Ingredients Energy / Health Buff(s) Duration
Autumn's Bounty.png
Autumn's Bounty Yam.png Yam (1)Pumpkin.png Pumpkin (1) Energy.png220Health.png99 Foraging.png Foraging (+2)Defense.png Defense (+2) Time Icon.png 7m 41s
Coffee.png
Coffee Coffee Bean.png Coffee Bean (5) Energy.png3Health.png1 Speed.png Speed (+1) Time Icon.png 1m 23s
Crab Cakes.png
Crab Cakes Crab.png Crab (1)Wheat Flour.png Wheat Flour (1)Egg.png Egg (1)Oil.png Oil (1) Energy.png225Health.png101 Speed.png Speed (+1)Defense.png Defense (+1) Time Icon.png 16m 47s
Cranberry Sauce.png
Cranberry Sauce Cranberries.png Cranberries (1)Sugar.png Sugar (1) Energy.png125Health.png56 Mining.png Mining (+2) Time Icon.png 3m 30s
Eggplant Parmesan.png
Eggplant Parmesan Eggplant.png Eggplant (1)Tomato.png Tomato (1) Energy.png175Health.png78 Mining.png Mining (+1)Defense.png Defense (+3) Time Icon.png 4m 39s
Fried Eel.png
Fried Eel Eel.png Eel (1)Oil.png Oil (1) Energy.png75Health.png33 Luck.png Luck (+1) Time Icon.png 7m
Fried Mushroom.png
Fried Mushroom Common Mushroom.png Common Mushroom (1)Morel.png Morel (1)Oil.png Oil (1) Energy.png135Health.png60 Attack.png Attack (+2) Time Icon.png 7m
Ginger Ale.png
Ginger Ale Ginger.png Ginger (3)Sugar.png Sugar (1) Energy.png63Health.png28 Luck.png Luck (+1) Time Icon.png 5m
Lucky Lunch.png
Lucky Lunch Sea Cucumber.png Sea Cucumber (1)Tortilla.png Tortilla (1)Blue Jazz.png Blue Jazz (1) Energy.png100Health.png45 Luck.png Luck (+3) Time Icon.png 11m 11s
Magic Rock Candy.png
Magic Rock Candy N/A Energy.png500Health.png225 Mining.png Mining (+2)Luck.png Luck (+5)Speed.png Speed (+1)Defense.png Defense (+5)Attack.png Attack (+5) Time Icon.png 8m 24s
Maple Bar.png
Maple Bar Maple Syrup.png Maple Syrup (1)Sugar.png Sugar (1)Wheat Flour.png Wheat Flour (1) Energy.png225Health.png101 Farming.png Farming (+1)Fishing.png Fishing (+1)Mining.png Mining (+1) Time Icon.png 16m 47s
Miner's Treat.png
Miner's Treat Cave Carrot.png Cave Carrot (2)Sugar.png Sugar (1)Milk.png Milk (1) Energy.png125Health.png56 Mining.png Mining (+3)Magnetism.png Magnetism (+32) Time Icon.png 5m 35s
Pepper Poppers.png
Pepper Poppers Hot Pepper.png Hot Pepper (1)Cheese.png Cheese (1) Energy.png130Health.png58 Speed.png Speed (+1)Farming.png Farming (+2) Time Icon.png 7m
Pumpkin Soup.png
Pumpkin Soup Pumpkin.png Pumpkin (1)Milk.png Milk (1) Energy.png200Health.png90 Luck.png Luck (+2)Defense.png Defense (+2) Time Icon.png 7m 41s
Roots Platter.png
Roots Platter Cave Carrot.png Cave Carrot (1)Winter Root.png Winter Root (1) Energy.png125Health.png56 Attack.png Attack (+3) Time Icon.png 5m 35s
Spicy Eel.png
Spicy Eel Eel.png Eel (1)Hot Pepper.png Hot Pepper (1) Energy.png115Health.png51 Luck.png Luck (+1)Speed.png Speed (+1) Time Icon.png 7m
Stuffing.png
Stuffing Bread.png Bread (1)Cranberries.png Cranberries (1)Hazelnut.png Hazelnut (1) Energy.png170Health.png76 Defense.png Defense (+2) Time Icon.png 5m 35s
Super Meal.png
Super Meal Bok Choy.png Bok Choy (1)Cranberries.png Cranberries (1)Artichoke.png Artichoke (1) Energy.png160Health.png72 Speed.png Speed (+1)Max Energy.png Max Energy (+40) Time Icon.png 3m 30s
Triple Shot Espresso.png
Triple Shot Espresso Coffee.png Coffee (3) Energy.png8Health.png3 Speed.png Speed (+1) Time Icon.png 4m 12s

Explosives

Bombs make quick work of densely-clustered stones and ore veins. They can also be used for permanently defeating Mummies.

Bombs can be crafted, or purchased from Dwarf:

Image Name Ingredients Purchase Price
Cherry Bomb.png
Cherry Bomb Copper Ore.png Copper Ore (4)Coal.png Coal (1) data-sort-value="300">Gold.png300g
Bomb.png
Bomb Iron Ore.png Iron Ore (4)Coal.png Coal (1) data-sort-value="600">Gold.png600g
Mega Bomb.png
Mega Bomb Gold Ore.png Gold Ore (4)Solar Essence.png Solar Essence (1)Void Essence.png Void Essence (1) data-sort-value="1600">Gold.png1,600g

The Slingshot's Explosive Ammo is also effective in dealing with small groups of stones, Iridium Ore deposits, and incapacitated Mummies. Loading the Slingshot with Gold Ore deals substantial damage, making it potentially useful for dispatching tough targets. Explosive ammo can be crafted, or bought at the Adventurer's Guild for data-sort-value="300">Gold.png300g.

Staircases

Staircases can be used for rapid descent or skipping troublesome floors. If the player has one or more Crystalariums, they can be used to produce Jade which can be traded for Staircases with the Desert Trader on Sundays.

Rings

Several Rings may assist in exploring the Skull Cavern. See the Rings page for full descriptions.

Warp Totems

A Warp Totem can be used to make a quick exit if supplies are running low or the day is almost over to avoid the fee of up to data-sort-value="1000">Gold.png1,000g for passing out at 2:00 am.

A Warp Totem: Desert (or Desert Obelisk) can be used to access the Desert about 4 hours earlier than Pam arrives at the Bus Stop.

Monsters

Image Monster HP Damage Notes
Armored Bug.png
Armored Bug 1 8 Can only be killed while using a weapon with the bug killer enchantment.
Big Purple Slime.png
Big Slime 60 5 A chance to split into smaller Slimes when killed. Big Slimes are purple in the Skull Cavern.
Purple Slime.png
Purple Slime 410 28 Can drop Iridium Ore and Iridium Bars.
Lava Bat.png
Lava Bat 80 15 Only appears on floors 20 and 40; flies.
Mummy.png
Mummy 260 30 Appears on Mummy floors. Needs to be finished with a bomb of any type after being knocked out with other weapons. If a bomb does enough damage to knock the Mummy out, it will also destroy it. Using a weapon with the Crusader enchantment stops them from reviving. Frequently drops Solar Essence when slain, and occasionally drops Cloth.
Serpent.png
Serpent 150 23 Moves quickly; default flying enemy. Frequently drops Void Essence. Occasionally drops Spicy Eel and Bombs.
Iridium Bat.png
Iridium Bat 300 30 Appears at floor 51+ and on prehistoric floors. Very high HP and Damage. Frequently drops Iridium Ore and Solar Essence.
Iridium Crab.png
Iridium Crab 240 15 Appears at floor 26+. Can drop Iridium Ore and Crab Cakes.
Carbon Ghost.png
Carbon Ghost 190 25 Can appear on Mummy floors. Frequently drop Omni Geodes. May occasionally drop Refined Quartz.
Pepper Rex.png
Pepper Rex 300 15 Appears mainly on prehistoric floors; breathes fire. Drops Dinosaur Egg or one of 3 prehistoric Artifacts.
Mutant Fly.png
Mutant Fly 66 12 Can appear on prehistoric floors.
Armored Bug Dangerous.png
Armored Bug (dangerous) 250 20-27 Only appears when the Skull Cavern is in a "dangerous" state.
Mummy Dangerous.png
Mummy (dangerous) 445 38-55 Only appears when the Skull Cavern is in a "dangerous" state.
Royal Serpent.png
Royal Serpent 300-1050 32-48 Only appears when the Skull Cavern is in a "dangerous" state.
Purple Slime Dangerous.png
Purple Slime (dangerous) 403 20-30 Only appears when the Skull Cavern is in a "dangerous" state.

Prehistoric Floors

See also: The Mines#Infested Floors
A Prehistoric Floor

Prehistoric floors are a type of infested floor containing mainly Pepper Rex monsters. Mutant Flies and Iridium Bats can also spawn and attack the player there. Dinosaur Eggs and Fiddlehead Ferns can be foraged on Prehistoric floors. Foliage on this floor has a chance to yield an Ancient Seed when cut down. There is a ~2.2% chance to encounter a prehistoric floor at and below floor 7.[4]

Because prehistoric floors are infested, all enemies on this floor must be killed before a ladder appears.

Treasure Rooms

Rotten Plant.png  Warning: Spoilers  Rotten Plant 2.png

This page or section contains unmarked spoilers from update 1.6 of Stardew Valley. Players may want to avoid or be cautious toward reading this article/section.

Small rooms containing treasure chests, similar to those in the Mines, can randomly appear at floors 10+. Daily luck and luck buffs affect the chance to find Treasure Rooms.

The probability of encountering one when entering a new floor equals to 0.01 + (Daily Luck / 10) + (Luck Buffs / 100).[4] This means Treasure Rooms have a base chance of 1% to appear with daily luck increasing the chance by 1% at best or decreasing by 1% at worst, with the Special Charm adding 0.25%, and food buffs adding 1% for every point of luck. In multiplayer, the luck values taken into account are the average of luck stats of players present in the Skull Cavern.

Floor 100 of the Skull Cavern is guaranteed to contain a treasure chest. The only exception is during the run where the player completes the secret. Floors 200 and 300 of the Skull Cavern are also guaranteed to contain 2 and 3 treasure chests, respectively.

Below is a table of all possible treasures that can be randomly found inside Treasure Chests in the Skull Cavern.

Image Name Quantity  Chance [5] 
Mega Bomb.png
Mega Bomb 5 1/26
Bomb.png
Bomb 10 1/26
Cactus Seeds.png
Cactus Seeds 15 1/26
Life Elixir.png
Life Elixir 2-4 1/26
Omni Geode.png
Omni Geode 5 1/13 (if Mystery Boxes aren't available)
1/26 (if Mystery Boxes are available)[6]
Warp Totem Farm.png
Warp Totem: Farm 5 1/26
Rain Totem.png
Rain Totem 1-3 1/26
Apple Sapling.png
Apple Sapling 1 1/156
Apricot Sapling.png
Apricot Sapling 1 1/156
Cherry Sapling.png
Cherry Sapling 1 1/156
Orange Sapling.png
Orange Sapling 1 1/156
Peach Sapling.png
Peach Sapling 1 1/156
Pomegranate Sapling.png
Pomegranate Sapling 1 1/156
Iridium Sprinkler.png
Iridium Sprinkler 1-2 1/26
Quality Sprinkler.png
Quality Sprinkler 4 1/26
Parsnip Seeds.png
Parsnip Seeds 5-20 1/702
Bean Starter.png
Bean Starter 5-20 1/702
Cauliflower Seeds.png
Cauliflower Seeds 5-20 1/702
Potato Seeds.png
Potato Seeds 5-20 1/702
Garlic Seeds.png
Garlic Seeds 5-20 1/702
Kale Seeds.png
Kale Seeds 5-20 1/702
Rhubarb Seeds.png
Rhubarb Seeds 5-20 1/702
Melon Seeds.png
Melon Seeds 5-20 1/702
Tomato Seeds.png
Tomato Seeds 5-20 1/702
Blueberry Seeds.png
Blueberry Seeds 5-20 1/702
Pepper Seeds.png
Pepper Seeds 5-20 1/702
Wheat Seeds.png
Wheat Seeds 5-20 1/702
Radish Seeds.png
Radish Seeds 5-20 1/702
Red Cabbage Seeds.png
Red Cabbage Seeds 5-20 1/702
Starfruit Seeds.png
Starfruit Seeds 5-20 1/702
Corn Seeds.png
Corn Seeds 5-20 1/702
Eggplant Seeds.png
Eggplant Seeds 5-20 1/702
Artichoke Seeds.png
Artichoke Seeds 5-20 1/702
Pumpkin Seeds.png
Pumpkin Seeds 5-20 1/702
Bok Choy Seeds.png
Bok Choy Seeds 5-20 1/702
Yam Seeds.png
Yam Seeds 5-20 1/702
Cranberry Seeds.png
Cranberry Seeds 5-20 1/702
Beet Seeds.png
Beet Seeds 5-20 1/702
Spring Seeds.png
Spring Seeds 5-20 1/702
Summer Seeds.png
Summer Seeds 5-20 1/702
Fall Seeds.png
Fall Seeds 5-20 1/702
Winter Seeds.png
Winter Seeds 5-20 1/702
Cherry Bomb.png
Cherry Bomb 15 1/26
Red Slime Egg.png
Red Slime Egg 1 1/26
Purple Slime Egg.png
Purple Slime Egg 1 1/26
Energy Tonic.png
Energy Tonic 2-4 1/26
Iridium Bar.png
Iridium Bar 2-3 1/26
Autumn's Bounty.png
Autumn's Bounty 5 1/260
Pumpkin Soup.png
Pumpkin Soup 5 1/260
Super Meal.png
Super Meal 5 1/260
Cranberry Sauce.png
Cranberry Sauce 5 1/260
Stuffing.png
Stuffing 5 1/260
Farmer's Lunch.png
Farmer's Lunch 5 1/260
Survival Burger.png
Survival Burger 5 1/260
Dish O' The Sea.png
Dish O' The Sea 5 1/260
Miner's Treat.png
Miner's Treat 5 1/260
Roots Platter.png
Roots Platter 5 1/260
Prismatic Shard.png
Prismatic Shard 1 1/26
Crystalarium.png
Crystalarium 1 1/26
Seed Maker.png
Seed Maker 1 1/26
Auto-Grabber.png
Auto-Grabber 1 1/26
Auto-Petter.png
Auto-Petter 1 1/26
Blue Cowboy Hat.png
Blue Cowboy Hat 1 1/52
Red Cowboy Hat.png
Red Cowboy Hat 1 1/52
White Turban.png
White Turban 1 1/26
Dark Cowboy Hat.png
Dark Cowboy Hat 1 1/26
Mystery Box.png
Mystery Box 5 1/26 (if available)[6]
Basilisk Paw.png
Basilisk Paw 1 9/200[7] 
Fairy Box.png
Fairy Box 1 9/200[7] 
Green Frog Egg.png
Frog Egg 1 9/200[7] 
Golden Spur.png
Golden Spur 1 9/200[7] 
Ice Rod.png
Ice Rod 1 9/200[7] 
Magic Hair Gel.png
Magic Hair Gel 1 9/200[7] 
Magic Quiver.png
Magic Quiver 1 9/200[7] 
Parrot Egg.png
Parrot Egg 1 9/200[7] 
Golden Animal Cracker.png
Golden Animal Cracker 1 1/50[7] 

Secret

After reading Secret Note #10, the player will find Mr. Qi at floor 100 of the Skull Cavern. A cutscene ensues in which:

Details 
Mr. Qi will either congratulate the player for reaching floor 100 while using 10 or fewer Staircases or say the player is "clever" but not "honorable" for using more than 10. In either case, he will award the player with Iridium Snake Milk, which permanently increases the player's health by 25 points.

QiCutsceneSkullCavern.png

Trivia

  • The plaques that can be occasionally found on the walls contain enciphered messages.
  • To reach the deepest floor of Skull Cavern, the Quarry Mine Floor would need to be bypassed, which has no ability to produce a ladder. This floor is coded as 77377, and can be found at floor 77257 of the Skull Cavern, (which counts floor 1 as floor 121 internally).[8]
  • Starting at floor 880, Iridium Bats will become red bats and have double health and faster speed.[9]

References

  1. The integer limit is 2147483647. The deepest level of Skull Cavern is 2147483527 (Because Skull Cavern is coded as floor 121 of the Mines) To reach that limit in one Stardew Valley day, the player would have to descend over 2 million floors per real-time second.
  2. See MineShaft::enterMineShaft in the game code.
  3. See MineShaft::getExtraMillisecondsPerInGameMinuteForThisLocation and Game1::UpdateGameClock in the game code.
  4. 4.0 4.1 See MineShaft::loadLevel in the game code.
  5. See MineShaft::getTreasureRoomItem in the game code.
  6. 6.0 6.1 Mystery Boxes are considered available once the player has viewed the Mr. Qi plane cutscene.
  7. 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 Only obtainable if the Combat Mastery (for Trinkets) or Farming Mastery (for Golden Animal Cracker) has been unlocked. See Mastery.
  8. See Locations.MineShaft::quarryMineShaft in the game code.
  9. See StardewValley.Bats::Bat in the game code.

History

  • 1.3.27: Added Carbon Ghost, Iridium Bat, Iridium Crab, Treasure Rooms, and encounter with Mr. Qi. Removed exploit that allowed the player to avoid bomb damage by consuming food after placing a bomb.
  • 1.4: Added Pepper Rex. Added White Turban to possible Treasure Room items. All players entering a shaft in Multiplayer now descend to the same floor. Qi's challenge can now be completed during the first visit to the Skull Cavern. Shafts will no longer drop the player past floor 100.
  • 1.5: Added Auto-Petter to possible Treasure Room items. Fixed chests spawned on certain floors being shifted down by 4 tiles. Fixed message appearing when opening a treasure room chest before opening the initial 15 Parsnip Seeds given by Mayor Lewis.
  • 1.5.2: Added Dark Cowboy Hat to possible Treasure Room items.
  • 1.5.5: Reaching floor 100 will result in a guaranteed treasure chest, except when viewing the secret cutscene.
  • 1.6: Additional chests added to Skull Cavern levels 200 and 300. Mystery Boxes, Trinkets, and the Golden Animal Cracker added to the chest loot pool. Added statue at the Cavern's entrance that can be used to toggle hard mode in the cavern after completing the Skull Cavern Invasion quest.