Shops are rooms with NPCs who sell items, and come in a variety of forms.
Bello
Bello runs the main shop, which appears on every floor except the Forge (where the Blacksmith runs a different shop) and Bullet Hell. Every shop has 3 random pickups for sale, usually along with several items, guns, or additional pickups. The shop may also have a table selling blanks, Glass Guon Stones, or a Map.
Notes
- There is a chance that the door to the shop will be locked.
- Shops have a chance to spawn another vendor NPC, Muncher, or the Sell Creep.
- Shops only sell guns and items of
, 
or 
quality (this includes Heart of Ice even though it is sold at rank price). - If the player has not picked up any keys yet on the current floor, the shop will always have one for sale.
- If the Prime Primer has not been bought yet, the shop in the Gungeon Proper will always have a separate display case that sells it for 110 shells.
- If the player has eaten Spice, additional Spice may spawn in the shop in its own display case.
- Repeatedly firing any weapon within his shop will cause Bello to first give the player a warning, then double prices, and finally become enraged and fire at the player. Afterwards, all of his shops will no longer have anything for sale.
- If the player is killed by the Bello, the death screen will say the player was killed by justice. If the player survives, they will be teleported to another room.
Trivia
- Bello's cat's name is Ocelot. Bello states that Ocelot followed him into the Gungeon because she has her own demons to battle.
Prices
Shop prices depend on the quality of the item:
- items cost 120
- items cost 90
- items cost 65
- items cost 45
- items cost 35
- and cost 30
- and cost 25
- and cost 20
- Glass Guon Stones cost 10
The exception to this is Table Tech Money, which costs 50 
.
Shop prices increase as the player progresses further into the Gungeon, and each floor has a price multiplier:
- Keep of the Lead Lord: x1
- Gungeon Proper and Oubliette: x1.2
- Black Powder Mine and Abbey of the True Gun: x1.4
- Hollow: x1.5
- Forge: x1.6
- Bullet Hell: x2
There are two vendors with price discounts:
- Cursula: x0.5 (but increases curse)
- Professor Goopton: x0.8
Additionally, vendors found in Black Markets will have a 50% discount.
Certain items and guns also provide shop discounts:
- Disarming Personality: x0.85
- Iron Coin: x0.8
- Smiley's Revolver: x0.85
Blacksmith
The Blacksmith runs the shop in the Forge. Her shop always has three pickups and three items or guns for sale.
In order to assemble the Bullet That Can Kill The Past, four items must be given to the Blacksmith:
These four items do not need to all be turned in at the same time, and can be turned in over multiple runs. Once all four items have been turned in, she will give the player the bullet. On all future runs, she will give the player the bullet when talked to.
The Cultist cannot turn in items to the Blacksmith.
Taking the Busted Television to the Blacksmith unlocks The Robot.
The Blacksmith may have a replacement arm for Ox, located to the left of her after defeating the High Dragun once. The Arm is needed for the Re-Armed Achievement and unlocks the Clone passive item. To get the replacement arm back up to Ox, you must find his arm and a balloon attached to an enemy on each floor starting from the Forge up until after the Keep of the Lead Lord. Afterwards, the arm will be placed outside of Ox and Cadence's shop door.
Unlike Bello, the Blacksmith may sell certain 
or 
quality guns and items, e.g. Broccoli.
Sell Creep
The Sell Creep has a chance to appear in any normal shop. If items or guns are dropped on the grate, the Sell Creep will take them and give in return. The amount of given in exchange is approximately 45% of the base cost of the item.
Active Items can be dropped by holding G or up on the D-pad, and guns by holding F or down on the D-pad. Passive Items like Junk can be dropped using the map interface.
Other Merchants
Various other NPCs that act as vendors can be met.
Old Red
Starts appearing after being saved from a cell in the Gungeon Proper.
This merchant will sell blanks and blank-related items, such as ammolets and the Elder Blank.
Cursula
Starts appearing after being saved from a cell in the Gungeon Proper.
This merchant sells various magic items, charming guns, and heart containers. However, all items or guns purchased from this merchant will increase the player's curse by 2.5.
Professor Goopton
Starts appearing after being saved from a cell in the Gungeon Proper.
This merchant sells various goop or fluid-related items, such as potions.
Upon spending enough money on this merchant, it will move up to The Breach where it will allow players to unlock new weapons. It will still continue to appear in the Gungeon below.
Flynt
A merchant from the race of the lock-adora.
Starts appearing after being saved from a cell in the Gungeon Proper.
This merchant primarily sells chest-related items. Unlike other merchants, he takes keys instead of money.
Trorc
This merchant sells a variety of "realistic"-themed items.
Upon spending enough money on this merchant, he will move up to The Breach where he will allow players to unlock new weapons. He will still continue to appear in the Gungeon below.
Resourceful Rat
If the player takes a shortcut to the third chamber onwards, the Resourceful Rat will appear in the elevator room and offer the player three free guns.
- In the Black Powder Mine, one of the three guns can be taken.
- In the Hollow, two of the three guns can be taken.
- In the Forge, all three guns can be taken.
Stealing
Items
Several items/guns can be used to steal items from shops, which will increase the player's curse by 1 per item. These are:
- Aged Bell
- Box
- Chaff Grenade
- Charm Horn
- Decoy
- Directional Pad
- Explosive Decoy
- Grappling Hook
- Grey Mauser
- Smoke Bomb
- Ring of Ethereal Form
Chances
- Stealing from any NPC will always work the first time.
- For the main shopkeeper, the second theft has a 50% chance to succeed, and any further thefts have a 10% chance to succeed. The main shopkeeper remembers the player between floors.
- If the player is caught stealing by the main shopkeeper, the main shop will be closed for the rest of the run.
- For other merchants, any theft past the first have a 10% chance to succeed. However, these merchants do not remember the player between floors.
- If the player is caught stealing by a merchant, that specific merchant will be closed. The merchant will still be open if encountered in a different location or floor.
- Stealing using the Grappling Hook is guaranteed to work, but the player is also guaranteed to get caught.
- The player can avoid getting caught if they leave the shop room before the Grappling Hook finishes dragging the stolen item towards them. This can be done by either walking out of the room quickly or using a teleporter.
Notes
- After stealing something, certain NPCs may refer to the player as "Thief". This may be a reference to Link's Awakening, in which NPCs refer to the player as "THIEF" if the player steals from the shop.