Open-Source Games Made with Claude

An open-source ASCII life sim where you age, marry, run a business and play on as your heirs.

Download required

A free, open-source browser MMORPG in the style of classic-era WoW.

Plays instantly in the browser

A free, open-source match-3 mining game across six dark planets; the developer says it was built almost completely with AI, with the game logic generated by Claude through Cline and Unity Muse.

Download required

A puzzle roguelike for the Game Boy Advance: dig down through timed puzzle rooms, run after run. Made in about 15 hours; the developer credits the code to Claude Opus 5.

Download required

An experimental physics sandbox: spawn tetrahedrons as “facts”, join them into shapes and molecules inside a Klein-bottle universe, and share them with friends over a direct connection.

Download required

A hardcore 2.5D pixel dungeon game for PC: go down with one lantern, build your own dungeon from the loot and dare friends to clear it; the solo developer says Claude made all of the code.

Demo available

An unofficial browser tribute to Elite (1984): trade, jump, dock and fight across the original 2,048 seeded worlds in wireframe. The developer says Claude and other coding agents did all the work, without the developer ever looking at the code.

Plays instantly in the browser

A point-and-click browser game made for a wedding website: wander ten illustrated rooms, throw a party and take a road trip; the README says AI agents write all the code.

Plays instantly in the browser

A free browser arcade of small original games, from a bubble shooter and a brick breaker to a kart racer and artillery duels, playable offline on a phone.

Plays instantly in the browser

A PlayStation 1-style souls-like with seven bosses and two-player online co-op, playable in the browser. The developer says the game was generated by Opus in an afternoon.

Plays instantly in the browser

A SimTower-style tower builder rebuilt around democratic socialism: you are the elected steward, and confidence is the score.

Plays instantly in the browser

Fly an FPV racing drone low and fast with nothing but vim keys, through procedural canyons, a tunnel and real terrain around Mt. Fuji and the Itsukushima Shrine torii. The README says the game was designed and implemented entirely by Claude.

Plays instantly in the browser

A real-time strategy game on the Ukrainian steppe in 1648, in one browser tab: raise a Cossack town, train pikemen, musketeers, horsemen and field guns, and burn the rival town halls. The README says the code was written by Claude Opus 5.5.

Plays instantly in the browser

A phone-first walk-around story game for intermediate learners of Korean, set at a fictional high school, where every word is tappable; the developer calls it vibecoded and had Claude write the story and definitions.

Plays instantly in the browser