Paranautical Activity combines the classic FPS action of games like Doom and Quake, with the randomness and difficulty of modern roguelikes like Binding of Isaac and Spelunky.Key featuresUnique FPS/Roguelike combinationProcedurally generated levelsImpossibly fast gameplayHidden levelsOver 100 items40+ enemiesRidiculous bossesKick ass Dubstep soundtrack