Chests

Chests are objects that can contain pickups, items, guns, and more. Chests are most often found in treasure rooms, but can also be found upon completing a room, using certain shrines, completing one of Winchester's games, or in secret rooms.

Chests can be found locked or unlocked; locked chests need a key to be unlocked, while unlocked chests can be opened for free. Chests found in treasure rooms are always locked, and always contain an item or gun. On every floor, one treasure room chest will contain a gun while the other will contain an item.

Upon entering a room with a chest, there is a random chance that a fuse will appear by the chest. If the chest is not opened within a short period of time, it will explode, leaving behind nothing. Any weapon that can spray a liquid can douse the fuse and stop it from exploding.

Chests can be destroyed by shooting them. This will often cause them to drop inferior loot, such as pickups or Junk. Destroyed chests have a 60% chance to drop Junk if the player has no keys, and this chance increases to 72% if the player is holding at least one key.

Chests can rarely be replaced by Mimics.

The order of chest rarity and quality of items inside from worst to best is:

1. Brown
2. Blue
3. Green
4. Red
5. Black
6. Rainbow

Brown chests can contain various pickups in addition to an item or gun.

Rainbow Chests

File:RainbowChest.png

A Rainbow Chest, replacing a normal chest.

Rainbow chests have a 0.0333% chance to replace a regular chest. Chests found upon clearing a room have a 0.001% chance to become a rainbow chest in addition to the normal 0.0333% chance. Rainbow chests are never locked, and they can never be mimics, even when the player has Mimic Tooth Necklace.

Rainbow chests contain 8 items and/or guns, which consist of approximately 15% , 54% and 31% .

Glitch Chests

Glitch fight — Fight screen of the glitch boss after opening the chest and entering the boss room.

Glitch chests have a 0.1% chance to appear, and they can only appear in the Keep of the Lead Lord, Gungeon Proper, and Black Powder Mine after the Beholster has been killed at least once and the player has entered the Gungeon more than 10 times.

Opening a glitched chest takes the player to a glitched version of the next floor that contains nothing but a boss room with two glitched Beholsters. Defeating the bosses rewards the player with normal boss rewards in addition to 7 guns and numerous pickups.

However, holding the Mimic Tooth Necklace will turn a glitch chest into a green chest Mimic, which drops a corresponding item and renders it impossible to reach the glitched floor.