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The Forge Interface

The Forge is located on Floor 10 in the Volcano Dungeon. It is used to upgrade weapons, enchant weapons and tools, combine rings, and change weapon appearances.

Weapon forging

A melee weapon (dagger, hammer, or sword) can be forged up to three times to improve its stats. Each forge costs one gem and 10/15/20 Cinder Shard.png Cinder Shards depending on how many times it was previously forged.

Using a Diamond.png Diamond as the gem fills all remaining forge levels with random upgrades, but consumes only 10 Cinder Shards.

Note that "level" refers to the number of times a weapon was forged with the specific gem. So for instance, if a weapon was forged with a Ruby, then an Emerald, and then an Amethyst, the weapon stats will have +10% attack power, +2 speed, and +1 weight.

Gem Effect
Amethyst.png Amethyst More Weight.png knockback (adds 1 per level).
Aquamarine.png Aquamarine More Crit. Chance.png critical hit chance (adds 4.6% per level).
Emerald.png Emerald More Speed w.png weapon speed (adds 2 on the first and third level, 3 on the second level).
Jade.png Jade More Crit. Power.png critical hit damage (adds 10% per level).
Ruby.png Ruby More Attack.png damage (adds 10% per level to both min and max damage).
Topaz.png Topaz More Defense.png Defense (adds 1 per level).


A random enchantment can be added to any melee weapon or tool, with the exceptions of the Copper Pan, Scythe, Golden Scythe, and Trash Can. This costs one Prismatic Shard.png Prismatic Shard and 20 Cinder Shard.png Cinder Shards.

Each weapon or tool can have only one enchantment at a time, and the applied enchantment is random. However, another enchantment can be applied (at the same price) to replace an existing one. Tools track the previous two enchantments applied to them so they're not reselected when applying a new enchantment.

Upgrading a tool keeps its enchantment.

Enchantments are randomized based on the number of times any tool has been enchanted, so reloading the day and enchanting a different tool will change the progression.

Combat enchantments

Only applies to melee weapons (can't be applied to a slingshot)

Name Effect
Artful 50% cooldown on special moves. (Stacks multiplicatively with Acrobat for a total of 75% cooldown reduction.)[1]
Bug Killer Double damage to grubs, flies, bugs, spiders, & rock crabs. Allows killing armored bugs.
Crusader 50% more damage to mummies, ghosts, skeletons, and void spirits. Prevents mummies from reviving.
Vampiric 9% Chance to regain some health on kill. Amount healed is 9% to ≈10.67% of monster's maximum health and does not scale with weapon damage.
Haymaker More fiber is earned when collecting weeds. Also a chance to collect hay.
Cutting weeds has a 50% chance of also dropping a fiber, and 33% chance of extra hay (directly into silo on farm, else into inventory).

Tool enchantments

Name Axe Rod Hoe Pick Can Effect
Iridium Rod.png
Automatically hooks fish/junk when they bite (which starts the fishing minigame if it hooks a fish).
Iridium Hoe.png
Double chance of finding artifacts in artifact spots.
Iridium Watering Can.png
Infinite water.
Iridium Axe.png
Iridium Rod.png
Iridium Hoe.png
Iridium Pickaxe.png
Iridium Watering Can.png
No energy drain.
Iridium Hoe.png
50% chance of double item after digging.
Iridium Rod.png
Adds an extra fishing level to the player while held.
Iridium Axe.png
Iridium Pickaxe.png
Adds 1 extra power level for pickaxe, 2 for axe.
Iridium Rod.png
50% chance that bait and tackle aren't consumed on use.
Iridium Hoe.png
Iridium Watering Can.png
Increased charge-up capacity for greater area of effect.
Increases the maximum area of effect to 5x5 tiles.
Iridium Axe.png
Extra 3 regular wood from Oak, Maple, Pine, Palm, and Mahogany trees.
3 wood from Mushroom trees.
Chance of extra hardwood from stumps.
Chance of extra produce from giant crops.
Iridium Axe.png
Iridium Hoe.png
Iridium Pickaxe.png
Tool use is 33% faster.

Infinity Weapons

A Galaxy Soul can be forged into a galaxy weapon at the cost of 20 Cinder Shards. Doing this 3 times (at a total cost of 3 Galaxy Souls and 60 cinder shards) will turn the weapon into a more powerful "Infinity" weapon. Adding just 1 or 2 does not affect the weapon. The weapons keep their enchantments and forgings when they are made into Infinity weapons.

Image Name Description Ingredients
Infinity Blade.png
Infinity Blade The true form of the Galaxy Sword. Galaxy Sword.png Galaxy Sword (1)Galaxy Soul.png Galaxy Soul (3)Cinder Shard.png Cinder Shard (60)
Infinity Dagger.png
Infinity Dagger The true form of the Galaxy Dagger. Galaxy Dagger.png Galaxy Dagger (1)Galaxy Soul.png Galaxy Soul (3)Cinder Shard.png Cinder Shard (60)
Infinity Gavel.png
Infinity Gavel The true form of the Galaxy Hammer. Galaxy Hammer.png Galaxy Hammer (1)Galaxy Soul.png Galaxy Soul (3)Cinder Shard.png Cinder Shard (60)

Weapon Appearance

Two weapons can be merged through the forge. The resulting weapon will have all the stats and info of the first weapon, but the appearance of the second weapon. Only weapons of the same type can be merged. Slingshots cannot be merged. The second weapon will be consumed.

This costs 10 Cinder Shards.

Combined Rings

Two different rings can be combined into one with stacked effects. This costs 20 Cinder Shards.

This has two restrictions:

  • Two of the same ring cannot be combined into one. (However, two different rings with the same effect can be combined, like the Glow Ring and Glowstone Ring. Their effects will stack in the same way as wearing both rings separately.)
  • Three or more rings cannot be combined into one. (i.e., a combined ring can't be further combined).


Weapons and combined rings can be unforged to reset its properties.

  • For a weapon, unforging removes all forge upgrades (but not enchantments) and resets its appearance.
  • For a combined ring, unforge splits it back into the original rings.

Unforging is free, but only returns some of the Cinder Shards used to forge the item.

To begin the unforging process, place the item for unforging into the left square slot. Then click the red ⨯ symbol near the bottom right corner. The unforged item(s) will appear in inventory, along with any returned Cinder Shards.


The Forge is the only floor of the Volcano Dungeon where fishing can occur. It is one of two locations in the game where players can catch Lava Eels. Crab pots cannot be placed in the forge.

There is a 5% chance the player can catch a present that contains the painting 'Physics 101'. This painting can only be caught once per player per game.[2] If this painting was not caught, the percent chance of hooking a Lava Eel is equivalent to 10 times the fishing zone of the spot fished. Otherwise, Trash will be caught. So for instance, there is a 50% chance to hook a Lava Eel and a 50% chance to hook Trash if the bobber lands in a spot with a fishing zone of 5.[2]



  1. See Tools.MeleeWeapon::doAnimateSpecialMove in the game code.
  2. 2.0 2.1 See StardewValley.Locations.Caldera::getFish in the game code.


  • 1.5: Introduced.
  • 1.5.2: Tools now track the previous two enchantments that were added to them and prevent those enchantments from being selected again.