Spelunky

Derek Yu's seminal roguelike platformer, developed and published by Mossmouth. Players explore procedurally generated underground caves as a spelunker, with permadeath, randomized levels, traps, and items making every run unique. The HD remake launched on Xbox Live Arcade in 2012 before reaching PC/Steam, PS3, and PS Vita in 2013. Supports up to 4-player co-op multiplayer.