Floor 1-5
From The Unofficial POWDER Wiki
Floors 1-5 are generated by placing rooms randomly, then connecting them with corridors using a pathfinding algorithm. There are two types of rooms: predefined rooms whose layouts and features are defined in text files prior to building the source, and randomly generated rectangular rooms.
The number of dark rooms is partially based on the floor. The lower the floor, the more dark rooms there can be. The floor number acts as the cap; each room below the cap has the same chance of being dark.
A fair number of the special rooms can appear in the roguelike levels.
