Tetris X is a tetris game with 2 game modes: Battle & Classic mode. In the battle mode you can play up against 3 human players or against the computer.
4GamesList is the best free alternative to Backloggd — like AniList, Letterboxd, or MyAnimeList but for video games. Track your game library, log playtime, sync Steam achievements and PSN trophies, browse game characters and studios, and connect with friends.