DoomRL

DoomRL keeps Doom's weapons, demons, medkits, armor, and fast pressure, but converts the action into turn-based tile movement. You still fight imps, former humans, cacodemons, and barons, but every step and shot is a tactical decision.

DoomRL was created by Kornel Kisielewicz, who later founded ChaosForge. The project began in the early 2000s and became one of the best-known examples of a roguelike adapting a shooter license without using the original engine.

Yes, Jupiter Hell is the commercial spiritual successor from ChaosForge. It keeps the DoomRL idea of fast turn-based gun combat, but uses 3D visuals and an original sci-fi setting.

Classic DoomRL is strongly associated with ASCII and tile-based roguelike presentation. Later versions also supported graphical tiles, but its design still comes from traditional roguelikes rather than first-person shooters.