UFO 50

UFO 50 is a collection of 50 single and multiplayer games from the creators of Spelunky, Downwell, and Catacomb Kids. Explore a variety of genres, from platformers and shoot 'em ups to puzzle games, roguelites, and RPGs. Our goal is to combine a familiar 8-bit aesthetic with new ideas and modern game design.

50 BRAND NEW GAMES – These are NOT minigames or microgames! Although the size of each game varies, every one is a complete experience, from its opening title screen to its ending credits. Some are small arcade-style games but there are also larger open-world adventures and a JRPG that could take many hours to beat.
AN ALTERNATE UNIVERSE – According to the story of UFO 50, the games were all created by a fictional 80s video game company that was obscure but ahead of its time. Some games are sequels to other games in the collection and various characters appear in multiple titles as part of a shared continuity.
AN INSTANT LIBRARY – All 50 games are available to play at the start! The concept was inspired by multicarts, retro collections, and the experience of going to a friend's house and perusing their game library. Jump in and out of games at a whim – exploring the collection is part of the fun!
AUTHENTIC BUT ALSO MODERN – We carefully chose what elements to modernize. Every game shares a unique 32-color palette and we took great efforts to make them look and sound like actual 8-bit titles from the 80s. On the other hand, it was important to us that UFO 50 was fun and surprising for modern players, so we chose not to limit ourselves to the genres and design conventions of the past.
VERSUS AND CO-OP PLAY – Half of the collection features local multiplayer, including co-op and versus. You can compete head-to-head in a new fighting or strategy game… or team up to beat a classic arcade game from an alternate timeline. It's great for groups!

Source: TheGamesDB