|Spawns In:||The Mines, Skull Cavern, Quarry Mine, and Secret Woods|
|Drops:|| Sap (all but Big Slime) Slime (all Slimes)See tables for specific drops.|
If reached bottom of Mines:Diamond (0.05%) Prismatic Shard (0.05%)
- This article is about the monster. For the drop, see Slime.
Slimes are enemies that can be found in various locations, including The Mines and the Secret Woods. They come in five different variations, all based on the same sprite and code (a color hue is added to the grey sprite found in data files). You need to kill 1000 Slimes of any color for Monster Eradication Goals. All Slimes in the game count towards this goal (e.g., in the Secret Woods) except for Big Slimes and Slimes raised in a Slime Hutch (by means of a Slime Incubator or Mating). Slimes spawned by killing a Big Slime do count towards the goal.
Each color of slime has a unique stat set.
All colors of slimes, both male and female, have an attack zone of 4 tiles in all directions. If the player enters this zone, the slime will attack.
Slimes attack in two ways. Either they bounce slowly at the player, or they "charge" to jump at the player from a distance. The charging animation resembles the slime becoming almost flat to the ground. If there is an obstacle in the way, the charge jump will cause them to bounce off the object (sometimes multiple times if they're in a tight spot). Occasionally slimes will enter a state of rage after being attacked, causing them to move significantly faster and have red eyes.
|Slimed||Speed (-4)||Being hit by a Slime.||2.5-3s|
When a slime is hit, it will be knocked back a short distance, out of range of melee weapons. The best strategy to kill slimes is to quickly move into striking distance to prevent their charge attack and corner them against a wall or, ideally, in a corner (of walls, rocks, or both). Both the charged and regular attacks may be avoided by using a defensive move (such as the block of the regular sword). Timing a block with a sword well can allow the player to get a decent amount of damage. Otherwise, offense is the best defense.
Any slimes have a 49% chance to be male and will retain its original properties such as being special. Male slimes have a pom-pom like antenna dangling above their "heads", 25% more health over the base HP, and 1 more damage. When it is passive and is attacked, male slimes have a 2.5% chance to increase its damage by 50% and do a shaking animation.
In a Slime Hutch or (less commonly) The Mines, Secret Woods, Skull Cavern, or Quarry Mine, male and female slimes may mate to produce a small slime that will grow into either a male or female adult slime.
Mating Color Results
The game generates a random pick from the following table. Each of the red, green, and blue color components of the slime is calculated independently of the other colors using the values from the parent Slimes. The most likely pick has a random chance of two outcomes per color component, also calculated independently of the other components. 
|Chance||Each Color Component (Red, Green, or Blue)|
|25%||Male Parent Component +/- random 25%|
|25%||Female Parent Component +/- random 25%|
|50%|| 50%: Maximum of (Male Parent Component or Female Parent Component)|
50%: Average of (Male Parent Component and Female Parent Component)
Note that Green, Blue, Red, and Purple slimes may drop Slime Eggs once a Slime Hutch has been built on The Farm. Once a Slime Hutch is built, any green, blue, red, or purple slime encountered anywhere may drop a Slime Egg. 
|Slime (75%) Slime (5%) Sap (15%) Green Algae (10%) Amethyst (1.5%) Dwarf Scroll I (0.5%) Dwarf Scroll IV (0.1%) Green Slime Egg (1%, only if a Slime Hutch has been built)|
|Blue Slime (Frost Jelly)|
but can sometimes be found on other Floors),
|Slime (75%) Sap (50%) Winter Root (8%) Jade (2%) Dwarf Scroll III (1.5%) Dwarf Scroll II (0.5%) Dwarf Scroll IV (0.1%) Blue Slime Egg (1%, only if a Slime Hutch has been built)|
|Notes:||Each attack slightly increases the chance to start glowing and increase its speed by 2|
|Red Slime (Sludge)|
|Slime (80%) Sap (50%) Coal (1-3, 10%) White Algae (10%) Diamond (1%) Dwarf Scroll III (0.5%) Dwarf Scroll IV (0.1%) Red Slime Egg (1%, only if a Slime Hutch has been built)Color based drops (see table below)|
|Purple Slime (Sludge)|
|410||16||0||2||10||Skull Cavern (1%)||Slime (80%) Sap (50%) Coal (1-3, 10%) White Algae (10%) Diamond (1%) Dwarf Scroll III (0.5%) Dwarf Scroll IV (0.1%) Iridium Ore (repeats a random 8% chance to drop until fail) Iridium Bar (0.9%) Purple Slime Egg (1%, only if a Slime Hutch has been built)Color based drops (see table below)|
|Notes:||These are the most powerful slimes, found only in the Skull Cavern.|
|3 × original slime||2 × original slime||Varies||2||Varies||The Mines,
| Original slime's drops|
Color based drops (see table below)
|Notes:||0.1% chance to recolor any slime (including special and male), will keep all the original slime's properties other than HP and Damage.|
|Varies||Varies||Varies||2||Varies||Slime Hutch|| Original slime's drops|
Color based drops (see table below)
|Notes:||In a Random Event after you sleep, the Witch will fly over your Slime Hutch, she will turn Slimes inside into Black Slimes. They keep the original slime's special properties and stats.|
Random dungeon Floors in The Mines
|Slime (80%) Sap (50%) White Algae (10%) Diamond (1%) Dwarf Scroll III (0.5%) Dwarf Scroll IV (0.1%) Copper Ore (repeats a random 33% chance to drop until fail)|
Random dungeon Floors in The Mines
|Slime (80%) Sap (50%) White Algae (10%) Diamond (1%) Dwarf Scroll III (0.5%) Dwarf Scroll IV (0.1%) Iron Ore (repeats a random 33% chance to drop until fail)Color based drops for gray slime (see table below)|
Special Slimes have a very small chance to replace any normal Slime. They can be identified by their antenna with a small yellow star.
Special Slimes have 3 times more health than normal Slimes and will deal twice as much damage per attack. They can drop special items.
|Special Green Slime|
|Notes:||0.175% chance to replace any Slime between floors 1-40. |
|Special Dark Green Slime|
|Notes:||1% chance to replace any Slime on floors 2-39, excluding floors ending in 0, 1, 5, or 6. |
|Special Blue Slime (Frost Jelly)|
|Notes:||0.175% chance to replace any Slime between floors 40-80. |
|Special Black/Transparent Slime|
|Notes:||1% chance to replace any Slime on floors 42-79, excluding floors ending in 0, 1, 5, or 6. |
|Special Red Slime (Sludge)|
|Notes:||0.175% chance to replace any Slime between floors 80-120. |
|Special Purple Slime (Sludge)|
|Notes:||0.175% chance to replace any Purple Slime. |
|Special Copper Slime|
|306||32||0||4||10||Quarry Mine, Random dungeon floors in The Mines||
|Notes:||0.175% chance to replace any Copper Slime. |
|Special Iron Slime|
|615||32||0||1||10||Quarry Mine, Random dungeon floors in The Mines||
|Notes:||0.175% chance to replace any Iron Slime. |
Big Slimes have similar attack behavior to the smaller slimes. When killed they have a 75% chance to split into 2-4 smaller slimes which will attack the player. Those small slimes give XP as the regular slimes above do.
Color Based Drops
In addition to the drops list above, the color of each variation is random and may have additional drops depending on the color range chosen. 
Color groups are mutually exclusive and listed in the order the game tests for them. (For example, a slime may fall into the White and Gray categories, but White is tested for first, so the slime would drop Iron Ore and not Stone).
The background color of the "RGB Values" column in the table below shows the color range that a slime can be to receive the drop.
|Black||Red < 80, Green < 80, Blue < 80||Coal (100%), Neptunite (5%), Bixite (5%)|
|Yellow||Red > 200, Green > 180, Blue < 50||Gold Ore (100%)|
|Red||Red > 220, Green > 90 and < 150, Blue < 50||Copper Ore (100%)|
|White||Red > 230, Green > 230, Blue > 230||Iron Ore (100%), Diamond (100% if all red, green, and blue values are even numbers)|
|Gray||Red > 150, Green > 150, Blue > 150||Stone (100%)|
|Purple||Red > 150, Green < 50, Blue > 180||Iridium Ore (25%)|
- See GreenSlime::mateWith in the game code.
- See StardewValley.Monsters.GreenSlime::getExtraDropItems in the game code.
- Most slime drops are specified in the data file Content\Data\Monsters.xnb. The chance for a Purple Slime to drop Iridium Ore/Bars is set in the constructor for GreenSlime in the game code. The chance for Copper/Iron Slimes to drop ore is set in StardewValley.Locations.MineShaft::getMonsterForThisLevel.
- See MineShaft::populateLevel in the game code.
- See the GreenSlime constructor in StardewValley.Monsters.
|Mines||Bats • Bug • Cave Fly • Duggy • Dust Sprite • Ghost • Grub • Lava Crab • Metal Head • Rock Crab • Shadow Brute • Shadow Shaman • Skeleton • Slimes • Squid Kid • Stone Golem|
|Quarry Mine||Copper Slime • Haunted Skull • Iron Slime|
|Skull Cavern||Armored Bug • Big Slime • Carbon Ghost • Iridium Bat • Iridium Crab • Lava Bat • Mummy • Pepper Rex • Purple Slime • Serpent|
|Bug Lair||Mutant Fly • Mutant Grub|
|The Farm||Wilderness Golem|
|Animals and Produce|
|Coop||Chicken (Egg • Large Egg • Brown Egg • Large Brown Egg) • Void Chicken (Void Egg) • Duck (Duck Egg • Duck Feather) • Rabbit (Wool • Rabbit's Foot) • Dinosaur (Dinosaur Egg)|
|Barn||Cow (Milk • Large Milk) • Goat (Goat Milk • Large Goat Milk) • Sheep (Wool) • Pig (Truffle)|
|Fish Pond||Fish (Roe)|
|Slime Hutch||Slimes (Slime • Slime Ball)|
|Other||Cat • Dog • Horse|