Fox Three
Missile launch at dusk
Games
Every clip and picture here was recorded in the engine. Three of the games run in your browser: press Play. All of them are in Worlds.
The sample games in Beta 1: open any of them in the free app and take it apart. For two of them, we show how we made it, from the first picture to today.
FreeIn developmentPlays in your browser2D · arena action
A top-down sword arena painted in black brush ink on white paper, with red as the only colour. Dash through five waves of ink demons, chain brush-stroke combos and face the Nameless, a giant ronin.
Made with Codex (GPT-6.1 Sol)



FreeIn developmentPlays in your browser2D · stealth puzzle
A top-down caper in layered cut paper. Slip past guards and their vision cones, crack a three-dial vault, transmit the carbon copy and get out before suspicion boils over.
Made with Codex (GPT-6.1 Sol)



FreeIn developmentPlays in your browserOne prompt · No hand edits2D · action platformer
Carry your lantern through the Drowned Steps, Lamplighters' Row and the Undertow. Light reveals the path, burns back the shadows and costs oil. At the bottom waits the Dimmer.
Made with Codex (GPT-6.1 Sol) · Claude Sonnet 5.5



FreeIn developmentDesktop game · 3D3D · jet combat
A carrier jet game. Catapult off the deck, climb through the clouds and fight over the island. Shot down? You eject, and the fight carries on on foot.
Made with Claude Opus 5.5 · Codex (GPT-6.1 Sol)


Shots, cameras, lip-synced lines and physics, directed on the engine's timeline. Each clip is a straight engine render.
Missile launch at dusk
Night launch in the rain
Shot down over the island
Ready room, lip-synced lines
Gameplay · off the catapult
Gameplay · the boss fight
The first games made while the engine was being built.

Survival on an island. The test bot won 10 of 10 runs.

Racing against an AI rival. The bot finished 5 of 5 races.

Boats. The same finish time on a Mac and a Steam Deck.

A 2D action platformer, exported as its own Mac app.

A cozy farming adventure, running in a web browser.

A side-scrolling brawler across the rooftops.
Arcwright is free. Download it, describe your game, and watch Claude Opus 5.5 build it in front of you.
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