Chest Guide (Qualities & Mimics)
Chests are the primary source of items and guns in Enter the Gungeon. They always appear in Chest room, and can also be found after clearing rooms, from 
Хозяин тира – Винчестер's game, or in secret rooms. Chest color corresponds to item Качество, and higher floors spawn better chests more often.
Chest room
Chest room chests are always locked and require a key. On each floor, one chest always contains a gun and the other always contains an item. This rule only applies to normal openings — destroying a chest bypasses this allocation.
Fuses
Entering a room with a chest has a chance (increased by Curse) of a fuse appearing next to it. If the chest isn't opened in time, it explodes and the contents are lost. Any Предметы or Оружие that sprays liquid (except oil) can extinguish the fuse. 
Synergy Chest found in Chest room always have a fuse.
Имитатор
Any standard chest can be replaced by a 
Имитатор. The chance increases with each point of Curse. 
Rainbow Chest, Synergy Chest, and Glitch Chest can never become a Имитатор. 
Rat Chest is the exception: it can be a Имитатор, it just never becomes one from 
Ожерелье из зубов имитатора.
How to identify a Имитатор
- Shoot the chest once: if it's a Имитатор it immediately reveals and attacks; if not, the chest takes no damage (explosions still destroy it)
- Watch the chest's mouth: a Имитатор's mouth subtly moves as if breathing
- Owning a
Пес: the dog barks when you approach a disguised Имитатор - Chest room chests are always locked: an unlocked
Brown Chest seen in a Chest room (or in the cellar-like secret room that always holds 3 chests) is always a Имитатор. Chests from room clears and elsewhere are often unlocked anyway, so this tell does not apply there 
Надежные отмычки never provokes a Имитатор, whether the pick succeeds or fails; 
Бур breaks the lock and provokes it immediately
Shooting to reveal a Имитатор does not consume a key. Defeating it drops the original contents plus extra loot. A Имитатор's HP and damage scale with the chest's Качество — a S качество Имитатор is far more dangerous than a D качество one.
Holding Ожерелье из зубов имитатора forces all standard chests to become Имитаторs. Combine it with 
Кольцо дружбы имитаторов and Имитаторs won't attack you, letting you open every chest for free with no key and no fight.
Destroying chests
Shooting a chest destroys it for a chance at some loot, but not the full contents. Only the player's bullets can break chests — enemy bullets cannot, though enemy explosions still deal damage. Rat Chest cannot be destroyed.
Хлам — base weight 0.6; multiplied by 1.2 if holding at least one key. If 
Хлам has not been unlocked yet, this Хлам has a 20% chance to be replaced by Хлам
Половина сердца— weight 0.2- Explosion — weight 0.1
- Предметы or Оружие at lower Качество than the chest — weight 0.1; with
Книга "Анатомия сундуков", Хлам and explosions are removed from the destruction table and replaced with pickups (
Ключ, 
Сердце, 
Боеприпасы, and so on), and the dropped Качество improves as well 
Золотой хлам (requires unlock) — weight 0.005; multiplied by 3 if holding Хлам- Хлам (requires unlock) — weight 0.01
Drop chance = that item's weight divided by the sum of all applicable weights. Brown Chest (D качество) chests don't downgrade further, so they always drop an Предметы or Оружие if the item/gun slot is rolled.
Standard chests
The five standard colours map to the five Качество tiers. When a floor generates a chest, its colour is rolled from the table below, weighted more heavily toward high Качество the deeper you go. These figures do not account for Magnificence downgrades, so what you actually receive can be lower — see 
What Is Magnificence?.
| Floor | D качество | C качество | B качество | A качество | S качество |
|---|---|---|---|---|---|
| Цитадель Свинцового Властелина | 35% | 32% | 20% | 9% | 4% |
| Собственно Оружелье / Oubliette | 10% | 37% | 40% | 9% | 4% |
| Черная Пороховая Шахта / Аббатство Истинной Пушки | 2% | 26% | 54% | 12.5% | 5.5% |
| Hollow | 2% | 20% | 50% | 20% | 8% |
| Кузня | 0% | 10% | 42.5% | 35% | 12.5% |
That is the current (Advanced Gungeons & Draguns) loot table. The Classic loot table can be switched back on from the Gameplay section of the Options menu in Брешь or on the title screen.
Its first three floors are noticeably more conservative: Цитадель Свинцового Властелина is 42.5 / 35 / 15 / 5 / 2.5, Собственно Оружелье is 20 / 32.5 / 35 / 9 / 3.5, and Черная Пороховая Шахта is 10 / 22 / 50 / 12.5 / 5.5 (listed D качество through S качество). Floors 4 and 5 are identical on both tables.
Brown Chest
D качество, most common. Some Brown Chest contain only pickups (
Гильзы, hearts, blanks) with no Предметы or Оружие.
Blue Chest
C качество. Has a higher chance of dropping Предметы compared to other chest types; Оружие drops are relatively less common.
Green Chest
B качество. It carries none of the quirks the other colours have — the contents are simply a B качество Предметы or Оружие.
Red Chest
A качество. Opening a Red Chest that contains a heart-increasing item also yields an extra key.
Black Chest
S качество, the rarest standard chest. When a floor generates several 
Red Chest and 
Black Chest chests, it raises Magnificence (rarity suppression), making later high-tier rewards more likely to be downgraded — see What Is Magnificence?.
Special chests
Synergy Chest
After rescuing 
Торговка синергиями – Синергрейс, normal chests have roughly a 5% chance to be replaced by a Synergy Chest, which always has a fuse.
Opening one reveals its color, which determines what's inside. One is guaranteed to spawn after defeating the 
Старый Король (except in Classic mode). Synergy Chest can also be purchased directly from Торговка синергиями – Синергрейс.
Rainbow Chest
Rainbow Chest have a 0.0333% base chance to replace a normal chest (room-clear reward chests have an additional 0.001% chance, for a combined ~0.0343%). They are never locked and provide 8 Предметы or Оружие (~S качество 15%, ~A качество 54%, ~B качество 31%). Rainbow Chest can also disguise as Brown Chest — this variant only unlocks after breaking at least 5 ordinary Brown Chest; shooting with a liquid weapon or opening it reveals it.
Glitch Chest
A 0.1% chance variant that only appears on floors 1–3. Two conditions must be met: the player must have entered Enter the Gungeon more than 10 times, and must have defeated 
ОЧЕВИДЕЦ at least once. Opening one instantly transports the player to a glitch version of the next floor containing only a boss room with two Glitch ОЧЕВИДЕЦ.
Defeating them rewards 7 Оружие or Предметы plus the standard boss drops and a floor full of pickups. Because the floor drops you straight into the boss room with no chests along the way, all 7 pedestals will normally hold guns as long as you have not picked up a gun on that floor before the bosses die.
Reward pedestals have a high chance of being a 
Имитатор-пьедестал, which also makes this a reliable way to run into one and unlock the 
Оружие-Имитатор (see 
All Unlocks Guide: Characters, Guns & Items).
Rat Chest
Found exclusively in the Resourceful Rat's Lair. They require 
Крысиный ключs, dropped during the third Punch-Out phase of the 
Находчивый Крыс fight (up to six per fight).
After the fight, four Rat Chests appear in random order, containing the 
Устранитель, 
Надкушенный сыр, 
Находчивый мешок, and 
Крысиные сапоги. Collecting all four transforms the character's appearance. Rat Chests cannot be destroyed. The entrance to the lair is covered in Resourceful Rat's Lair.
- Lockpicking options are limited:
АКлюч-47 and 
Скелетроновый ключ cannot open Rat Chests, but Надежные отмычки and Бур can - In co-op, if the Находчивый Крыс is killed while one player is dead, every Rat Chest can be opened without a Ключ (this does not revive the partner)
- If you already obtained any of the four Rat items before beating the Rat, opening a Rat Chest gives an A качество tier Предметы or Оружие instead
- If any of the four Rat items are still locked, there is no way to tell in advance which chest holds the remaining one
Truth Chest
Found in a secret room with 
Искатель истины – Брат Альберн, with a guaranteed appearance in the Аббатство Истинной Пушки (see Аббатство Истинной Пушки).
Answer his question — it cannot be answered wrongly — to open it for free; it contains 1–2 random-quality pickups, Предметы, or Оружие. Destroying it instead drops 
Ложь. It can also be forced open with АКлюч-47; either destroying it or forcing it open makes Искатель истины – Брат Альберн vanish on the spot.
Revival Chest
Co-op exclusive. When one player dies, all unopened chests in the room are replaced by 
Revival Chests. Opening or breaking any one of them revives the dead player; the remaining chests revert to normal. No key is required. A chest that was originally a Имитатор simply revives the partner and does not fight back. Check the map first to find the lowest-quality chest to use for the revival.
Частые вопросы
What do the two Chest room chests contain?
With normal openings, one chest contains a gun and the other an item. Destroying a chest bypasses that allocation.