UFO 50 is a collection of 50 brand new single and multiplayer games from the creators of Spelunky, Downwell, Time Barons, Skorpulac, and Madhouse. Jump in and explore a variety of genres, from platformers and shoot 'em ups to puzzle games and RPGs. The team's goal is to combine a familiar 8-bit aesthetic with new ideas and modern game design sensibilities. Also, roughly a third of the collection features local multiplayer, including co-op and versus. You can compete head-to-head in fighting or strategy gameplay, or team up to beat a 'classic' arcade game from an alternate timeline.