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 Hôte du stand de tir – Winchester's game, or in secret rooms. Chest color corresponds to item Qualite, 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 Objets or Armes that sprays liquid (except oil) can extinguish the fuse. Synergy Chest found in Chest room always have a fuse.

Mimique

Any standard chest can be replaced by a Mimique. The chance increases with each point of Curse. Rainbow Chest, Synergy Chest, and Glitch Chest can never become a Mimique. Rat Chest is the exception: it can be a Mimique, it just never becomes one from Collier de dents de Mimique.

How to identify a Mimique

• Shoot the chest once: if it's a Mimique it immediately reveals and attacks; if not, the chest takes no damage (explosions still destroy it)
• Watch the chest's mouth: a Mimique's mouth subtly moves as if breathing
• Owning a Chien: the dog barks when you approach a disguised Mimique
• 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 Mimique. Chests from room clears and elsewhere are often unlocked anyway, so this tell does not apply there
• Matériel de crochetage never provokes a Mimique, whether the pick succeeds or fails; Perceuse breaks the lock and provokes it immediately

Shooting to reveal a Mimique does not consume a key. Defeating it drops the original contents plus extra loot. A Mimique's HP and damage scale with the chest's Qualite — a S qualité Mimique is far more dangerous than a D qualité one.

Holding Collier de dents de Mimique forces all standard chests to become Mimiques. Combine it with Anneau de Mimiques Amicales and Mimiques 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.

• Ferraille — base weight 0.6; multiplied by 1.2 if holding at least one key. If Ferraille has not been unlocked yet, this Ferraille has a 20% chance to be replaced by Ferraille
• Demi-cœur— weight 0.2
• Explosion — weight 0.1
• Objets or Armes at lower Qualite than the chest — weight 0.1; with Livre d'anatomie coffréenne, Ferraille and explosions are removed from the destruction table and replaced with pickups (Clef, Cœur, Munitions, and so on), and the dropped Qualite improves as well
• Ferraille d'or (requires unlock) — weight 0.005; multiplied by 3 if holding Ferraille
• Ferraille (requires unlock) — weight 0.01

Drop chance = that item's weight divided by the sum of all applicable weights. Brown Chest (D qualité) chests don't downgrade further, so they always drop an Objets or Armes if the item/gun slot is rolled.

Standard chests

The five standard colours map to the five Qualite tiers. When a floor generates a chest, its colour is rolled from the table below, weighted more heavily toward high Qualite the deeper you go. These figures do not account for Magnificence downgrades, so what you actually receive can be lower — see What Is Magnificence?.

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 Brèche or on the title screen.

Its first three floors are noticeably more conservative: Forteresse du Seigneur du Plomb is 42.5 / 35 / 15 / 5 / 2.5, Gungeon is 20 / 32.5 / 35 / 9 / 3.5, and Mine de Poudre à canon is 10 / 22 / 50 / 12.5 / 5.5 (listed D qualité through S qualité). Floors 4 and 5 are identical on both tables.

Brown Chest

D qualité, most common. Some Brown Chest contain only pickups (Douilles, hearts, blanks) with no Objets or Armes.

Blue Chest

C qualité. Has a higher chance of dropping Objets compared to other chest types; Armes drops are relatively less common.

Green Chest

B qualité. It carries none of the quirks the other colours have — the contents are simply a B qualité Objets or Armes.

Red Chest

A qualité. Opening a Red Chest that contains a heart-increasing item also yields an extra key.

Black Chest

S qualité, 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 Marchande de synergies – Synergrace, 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 Vieux Roi (except in Classic mode). Synergy Chest can also be purchased directly from Marchande de synergies – Synergrace.

• If blue, it drops an Objets or Armes that completes a synergy with something you're already carrying.
• If red, it drops a random Objets or Armes. Completing a synergy is possible, but not guaranteed.

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 Objets or Armes (~S qualité 15%, ~A qualité 54%, ~B qualité 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 Tirant-œil 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 Tirant-œil.

Defeating them rewards 7 Armes or Objets 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 Mimique Piédestale, which also makes this a reliable way to run into one and unlock the Mimic Gun (see All Unlocks Guide: Characters, Guns & Items).

Rat Chest

Found exclusively in the Resourceful Rat's Lair. They require Clef du rats, dropped during the third Punch-Out phase of the Rat rusé fight (up to six per fight).

After the fight, four Rat Chests appear in random order, containing the Fromager, Fromage Grignoté, Sac Rusé, and Bottes de Rongeur. 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: AKLÉ-47 and Clef cartouch'os cannot open Rat Chests, but Matériel de crochetage and Perceuse can
• In co-op, if the Rat rusé is killed while one player is dead, every Rat Chest can be opened without a Clef (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 qualité tier Objets or Armes 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 Chercheur de vérité – Brother Albern, with a guaranteed appearance in the Abbaye de l'Arme Véritable (see Abbaye de l'Arme Véritable).

Answer his question — it cannot be answered wrongly — to open it for free; it contains 1–2 random-quality pickups, Objets, or Armes. Destroying it instead drops Mensonges. It can also be forced open with AKLÉ-47; either destroying it or forcing it open makes Chercheur de vérité – Brother Albern 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 Mimique simply revives the partner and does not fight back. Check the map first to find the lowest-quality chest to use for the revival.