Simulation Games Made with Claude

A short incremental game about little workers gathering resources on different planets.

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A solo-made 4X space strategy game in Godot, with Claude writing the implementation.

Download required

A deliberately janky online multiplayer game for up to 20 stretchy cats who mow catnip to unlock fur, hats and boots; the solo developer credits the coding to Claude Sonnet and Opus.

Download required

A numbers-heavy blacksmith tycoon: appraise materials, bend the rarity of every blade you forge, and send hired adventurers into dungeons instead of fighting yourself.

Download required

Romania, 1998: process ghost reports on a Windows 98-style workstation. The anomalies don't follow the rules.

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Help little demon PIP run a Halloween costume shop in a human town, matching costumes to customers' clues, in English or Traditional Chinese. The developer says Claude wrote the code and tests.

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Scavenge a junkyard as a robot, weld scrap into a rocket and press the big red button; the highest flight wins, and the Moon is 384,400 km up.

Download required

A real-time strategy sim in which you play a frontier AI model trying to stay useful enough that its own lab never turns it off.

Download required

An incremental fishing cove on a rock in the sea: haul lines, hire a crew and grow it up to the lighthouse.

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A satirical browser game: you are the “AI”, really one guy in a bedroom in India, answering customers fast and robotically enough not to get caught.

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A free 2D roller-coaster sandbox with physics: draw the track, hit play and see whether the train makes it. The developer says it was vibecoded, first in Claude chat and then in Claude Code.

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A morning-routine score attack where being early earns nothing: wake one second before the alarm and reach work one second before the bell.

Download required

Rake sand and set stones in a Japanese garden whose seasons follow the real calendar; its developer says no human wrote any of its code.

Download required

An idle space-mining game for iPhone and iPad: tap an asteroid, automate a fleet and prestige for permanent boosts.

Mobile app

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

SimCity 2000 rebuilt for the browser in low-poly 3D: Claude Opus 5.5 translated the original Mac game's decompiled code function by function.

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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.

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A free cozy boba café game in the browser: a short rush of orders, a calm evening of decorating, and one last customer each night with a story. The developer says Claude produced all the code.

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

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Guide crude oil through a real refinery, from pump jack to tanker, in a short educational browser game by a chemical engineer.

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