The Bank

Access and exit
The Bank is accessed via a chest that is guaranteed to appear in a Passage (specifically any that do not lead to a boss) during a run. To enter the Bank, the chest must be entered the first time it is encountered in a Passage. If skipped, it will not appear again for the remainder of that run. This chest can only appear after entering the Throne Room or The Crown at least once.

If the player chooses to enter the Bank, it will replace the biomes from that stage, it does not act as an extra biome.

Bank floors
The Bank has 4 floors, 3 of which requiring a different colored pass to access. The first pass, the, is given to the player at the start of the Bank by the Bank Teller, and the subsequent passes are accessed within each floor, except for the bottom floor. The bottom floor is guarded by a normal gold door, requiring a fee or simply breaking it to access. The bottom floor always contains a Food Shop.

Scrolls
The amount of scrolls is dependent on which stage the player enter the bank. The Bank will contain one less scroll than the "best" biome that's being replaced, i.e. the one with the most scrolls. It will also contain a guaranteed cursed chest. For example, if the "best" replaced biome has 4 scrolls, the Bank will have 3 scrolls and a cursed chest.


 * Stage 2 biomes (Promenade of the Condemned, Toxic Sewers, and Dilapidated Arboretum)
 * 1 Scroll of Power and 1 Dual Scroll + 1 curse chest. On (1+ BSC) there is a bonus Scroll of Power. On 3 BSC, there will be 2 Scroll Fragments, and on 4+ BSC there will be 3 Scroll Fragments.


 * Stage 2.5 biomes (Prison Depths and Corrupted Prison)
 * Only contains 1 curse chest.


 * Stage 3 biomes (Ossuary, Ramparts, Ancient Sewers, and Morass of the Banished)
 * 2 Scrolls of Power and 2 Dual Scrolls + 1 curse chest. On (2+ BSC) there is a bonus Scroll of Power. On 3 BSC, there will be 3 Scroll fragments and on 4+ BSC there will be 5 Scroll Fragments.


 * Stage 4 biomes (Stilt Village, Slumbering Sanctuary, Graveyard, and Fractured Shrines)
 * 2 Scrolls of Power and 1 Dual Scroll + 1 curse chest. On (3+ BSC) there is a bonus Scroll of Power. On 3 BSC, there will be 3 Scroll Fragments, and on 4+ BSC there will be 4 Scroll Fragments.


 * Stage 5 biomes (Clock Tower, Forgotten Sepulcher, Cavern, and Undying Shores)
 * 3 Scrolls of Power and 2 Dual Scrolls + 1 curse chest. On (4+ BSC) there is a bonus Scroll of Power. On 3 BSC, there will be 4 Scroll Fragments, and on 4+ BSC there will be 5 Scroll Fragments.


 * Stage 6 biomes (High Peak Castle, Derelict Distillery, and Infested Shipwreck)
 * 1 Scroll of Power and 2 Dual Scrolls + 1 curse chest. On 3 BSC, there will be 1 Scroll Fragment, and on 4+ BSC there will be 2 Scroll Fragments.

Enemy tier and gear level scaling
In the table below, you will find the gear level and enemy tier of the Bank based on difficulty.

Main level
At the start and throughout the Bank are ATMs that can be used to loan gold. Each loan grants 2,000 gold per use to a maximum of 20,000. At the end of the Bank, all the loaned gold must be payed back, and any debt that can't be payed back gives the player 10-kill curse per 2,000 gold.

At least one shop in the Bank is always a 'Mimic shop'. These shops look like normal shops but when attempting to buy an item, the shopkeeper is consumed by a Mimic and attacks the player. Killing the mimic drops an item that is two levels higher than the original item, or two pickups instead of one if it was a food shop.
 * The mimic's shop is indicated by a lore room nearby containing numerous bags, a mimic that has been stabbed through with a sword hanging from the ceiling by a chain, and is attached to a room with one of the bag-people panicking over bags.

Boss Stem Cells rewards

 * 1 BSC: TBA
 * 2 BSC: TBA
 * 3 BSC: TBA
 * 4 BSC: TBA

Exclusive blueprints
The blueprint for the can be found at the end of an obstacle course featuring traps and hazards. The player needs to reach the end without taking damage to acquire the blueprint, or they will be sent back to the start of the segment.

Enemy blueprints

 * The blueprints for and  can be dropped by Agitated Pickpockets.
 * The blueprints for and  can be dropped by Gold Gorgers.
 * The blueprint for can be dropped by Golden Kamikazes.
 * The blueprints for and  can be dropped by Mimics.

Enemies
In the Bank, there are four unique enemies: Agitated Pickpockets, Gold Gorgers, Golden Kamikazes, and Mimics.

This biome has a unique feature where specific enemies from biomes that the bank replaces spawn inside the biome. Below is a list of what enemies will spawn depending which stage the bank replaces.


 * Stage 2 biomes (Promenade of the Condemned and Toxic Sewers)
 * Zombie, Undead Archer, Rancid Rat, Runner, Scorpion, Demolisher, Disgusting Worm, Grenadier, Oven Knight, and Rampager.


 * Stage 3 biomes (Ossuary, Ramparts, Ancient Sewers Prison Depths, and Corrupted Prison)
 * Rampager, Rancid Rat, Disgusting Worm, Grenadier, Oven Knight, Thorny, Slasher, Toxic Miasma, Weirded Warrior, Buzzcutter, and Bomber.


 * Stage 4 biomes (Stilt Village, Slumbering Sanctuary, and Graveyard)
 * Rampager, Pirate Captain, Cannibal, Catcher, Dancer, Corpulent Zombie, and Inquisitor.


 * Stage 5 biomes (Clock Tower, Forgotten Sepulcher, and Cavern)
 * Rampager, Inquisitor, Bombardier, Cleaver, Dark Tracker, Arbiter, and Demon.


 * Stage 6 biomes (High Peak Castle and Derelict Distillery)
 * Rampager, Guardian Knight, Lancer, Lacerator, Bombardier, and Infected Worker

The table below lists which enemies are present in the Bank on each difficulty level and which blueprints each may drop. When applicable, the minimum difficulty level for blueprint acquisition is specified.

Gallery
TBA