What video game is a roguelike game devloped by ChaosForge and is a  science fiction horror-themed first person shooter?
DRL (video game): DRL (formerly DoomRL), short for Doom, the Roguelike, roguelike video game developed by ChaosForge. Doom (1993 video game): Doom (typeset as DOOM in official documents) is a 1993 science fiction horror-themed first-person shooter (FPS) video game by id Software.
Doom