Three.js Games Made with Codex

Look around a 360° historical scene, then guess when and where it happened.

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Shopping-cart racing at rocket speed through a haunted supermarket — second place at Vibe Jam 2026.

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Grow, prune and shape a living bonsai tree in a calm 3D garden in the browser.

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Fly from orbit down to a planet's surface — an OpenAI demo game built in Codex.

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A three-lap browser kart racer against six rivals, coded by Claude in Claude Code.

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A cute, funny life-sim card game: draw picture cards instead of spinning a wheel, and choose how your life goes.

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A chaotic marble motorsport game in three.js, built mainly with Claude Code and Codex.

Download required

id Software's Quake, ported to JavaScript and Three.js with Claude Code.

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A 3D survival-horror expedition through torchlit catacombs with no combat: when your flame dies, the Hunter starts searching for you.

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A short tap-to-explore settlement game on a new planet, built mostly with Codex; zoom out from the 2D map to a 3D globe.

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A 3D browser roguelite: a small brass machine with a sword, a gun and a laser cuts its way out of a castle-machine.

No download needed

Clay cavemen fight, gather resources and race to haul them back to their caves first.

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A deterministic orbital strategy game in which every ship in your fleet draws on one shared fuel reserve.

Demo available

Fast drone combat in escalating waves, with boss waves, missions and a hangar of permanent upgrades between runs.

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A surreal office shooter: a burned-out worker blasts a way out of a collapsing corporate nightmare.

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An unofficial Halo 3 fan project that turns the Guardian map into a playable personal website, with a treasure hunt through the developer's life; Codex wrote essentially all of the code.

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A free multiplayer meme game in the browser: drive, boost and fly a sports car through stunt courses, highways and a neon city. The developer says Codex with the model Astra did most of the work, and Claude Code polished the graphics.

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A reverse Moby-Dick: you are the whale, rising from the deep to break the whaling fleet.

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A cozy multiplayer sheep-farming game in 3D in the browser: build a shelter, raise 12 breeds of sheep, grow crops and share a farm with friends. The developer says GPT 6 Astra in Codex made it one-shot from a single /goal run.

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Toddlers brawl over the TV remote in a giant living room, and nap time is 90 seconds away.

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A childhood paper-and-pencil rock-paper-scissors game rebuilt in 3D papercraft: win throws, build your fortress, then knock theirs down.

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Play a pirate in 1691 and turn the Caribbean's richest city into chaos with ten brutal weapons.

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A scenic rally race through the Positano region, against the clock or other players.

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A free browser prototype: drive a red roadster through rush-hour traffic and use its jets to hop over oncoming cars; the developer says it was made with Codex, chatting and revising along the way.

No download needed

A Descent-style ship crawler with stealth and roguelike levels, deep inside a hostile asteroid.

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A multiplayer racing sim for a shared screen, where each player's phone becomes a tilt-to-steer controller with haptic and sound feedback.

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A strategy game played from the alien side: grow a living colony across the moon while human machines try to burn it out.

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A cartoon kart racer for one to four players in split screen, with jump ramps, four tracks and an EASY mode that steers for you. Built in Claude Code, per the developer.

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A fast parkour movement shooter with a speedrun gauntlet and a mission where you call in your mech.

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