One of these abyss rooms has two variants: one with the exit to the left and one with the exit to the right.Abyss rooms: Large rooms with maze-like paths constructed above a dark abyss.Notably the only randomly-generated room with a red fog instead of a black one. Some of them occasionally appearing on the walls. Red fog room (HD Renovation only): An extremely rare, small square-shaped room with several beds or bunk beds in it with some furniture.Bedrooms: Rooms with beds, chairs and/or drawers, usually found in the starting rooms of the game.

Walls, ceiling and ground textures may vary per floor, alongside the kind of rooms the player can find in each.

Here is a list of the many things and variations one can find in the regularly generated rooms for both Story Mode and Endless Mode.