Casa de Gemas

A Minecraft-style multiplayer block world that went viral on X with 7.4M views: one link is one shared live world — post it and everyone who opens it builds together in the browser, no download or account needed.

A free in-development browser demo where you merge Wood, Fabric and Food materials to craft treats, beds and toys for a cat named Cream.

A free browser game that uses AniList data: you see two anime and guess which one has more members or favourites on AniList, building a streak. Modes include Anime, Romance, Characters, Daily and a Wordle-style Hair Color mode where you recreate a character's hair color with sliders. No sign-up, no ads, works on mobile; the author describes it as an unofficial fan project.

An asynchronous 3-on-3 card battle where you write card descriptions in 30 characters or fewer and decide the order of three cards to compete. You can try the free tutorial right away without an account.

A free browser-playable fantasy card game where you build a deck from two of eighteen mix-and-match realms, with 800+ cards and AI, hot-seat and ranked modes.

A free browser card game built by an individual developer, featuring card-duel mechanics, a hard AI opponent using hidden-information search, online multiplayer via Firebase, a guided tutorial and a phone-first interface. No signup needed to play.