The rules are simple: liked the character - swipe your finger to the left. Did not like it - swipe to the right. Not to mention, you can learn how many people feels the same for your "2D love".
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.