- Procedurally Generated Dungeons - Roguelike Mode for fans of extreme challenge - 70+ different types of monsters, with different traits and custom mechanics - Xbox and Steam controller support - 3 underground realms and epic Quest Boss battles - Monthly and all-time Leaderboards, 200+ Achievements Book of Demons is the first installment of Return 2 Games - a series of original mid-core titles, inspired by the early golden days of PC gaming.