In developmentMade with Codex (GPT-6.1 Sol)
Arcwright Worlds
Play what people are building.
Games made in Arcwright. Play three of them right here, on a phone too. No install, no sign-up.
These games are being built in the open and updated as we go. Play the latest build.
FreeIn developmentPlays in your browser2D · arena action
INKBLADE
One blade against a storm of ink.
Made with Codex (GPT-6.1 Sol)FreeIn developmentPlays in your browser2D · stealth puzzle
PAPER HEIST
Crack the vault. Don't get seen.
Made with Codex (GPT-6.1 Sol)FreeIn developmentPlays in your browserOne prompt · No hand edits2D · action platformer
Lanternfall
Keep the last light burning through a drowned city.
Made with Codex (GPT-6.1 Sol) · Claude Sonnet 5.5FreeIn developmentDesktop game · 3D3D · jet combat
Night Shield
Launch off the carrier. Hold the island.
Made with Claude Opus 5.5 · Codex (GPT-6.1 Sol)How it startedINKBLADE
- Make a top-down sword arena with waves of enemies.
- Use black brush ink on white paper, with red as the only accent.
- Give the sword and dash a tight, responsive feel.
- Add hit-stop, splatter, sound and a polished title screen.
How it startedPAPER HEIST
- Make a top-down stealth puzzle about breaking into a vault.
- Build it from layered cut paper in teal, mustard and coral.
- Add guards with vision cones, keys and a route to the vault.
- Polish the movement, sound, effects and the win and lose screens.
The promptLanternfall
- You're a tiny lantern-bearer descending into a drowned, lightless city.
- Your lantern is everything: it lights the way, burns the shadows and runs on oil.
- Four parts: the Drowned Steps, Lamplighters' Row, the Undertow and the Dimmer.
- Follow-up: give it a visual polish pass.
How it startedNight Shield
- Make a carrier jet game with six linked missions.
- Take us from golden-hour patrols to a rainy night recovery.
- Make the catapult launch, turns and throttle feel great.
- Add radio calls, checkpoints, medals and a forgiving retry.
Your library
What you played, liked and follow.
In development
In developmentPAPER HEIST
2D · stealth puzzle
Made with Codex (GPT-6.1 Sol)
In developmentOne prompt · No hand editsLanternfall
2D · action platformer
Made with Codex (GPT-6.1 Sol) · Claude Sonnet 5.5
In developmentNight Shield
3D · jet combat
Made with Claude Opus 5.5 · Codex (GPT-6.1 Sol)
Play instantly in your browser
Tap Play and you're in. Keyboard, controller or touch.
In developmentMade with Codex (GPT-6.1 Sol)
In developmentPAPER HEIST
2D · stealth puzzle
Made with Codex (GPT-6.1 Sol)
In developmentOne prompt · No hand editsLanternfall
2D · action platformer
Made with Codex (GPT-6.1 Sol) · Claude Sonnet 5.5
Free
Everything in Worlds is free during the Beta.
In developmentMade with Codex (GPT-6.1 Sol)
In developmentPAPER HEIST
2D · stealth puzzle
Made with Codex (GPT-6.1 Sol)
In developmentOne prompt · No hand editsLanternfall
2D · action platformer
Made with Codex (GPT-6.1 Sol) · Claude Sonnet 5.5
In developmentNight Shield
3D · jet combat
Made with Claude Opus 5.5 · Codex (GPT-6.1 Sol)
New
Added this week.
In developmentMade with Codex (GPT-6.1 Sol)
In developmentPAPER HEIST
2D · stealth puzzle
Made with Codex (GPT-6.1 Sol)
In developmentOne prompt · No hand editsLanternfall
2D · action platformer
Made with Codex (GPT-6.1 Sol) · Claude Sonnet 5.5
In developmentNight Shield
3D · jet combat
Made with Claude Opus 5.5 · Codex (GPT-6.1 Sol)
Made with Arcwright
Earlier games and short films from the engine. Watch them on the games page.
Harbor Run
Boat racing in a harbor
Ironbell Keep
2D action platformer
Wellspring
Cozy farming adventure
Rooftop Ninja
Side-scrolling brawler
Updates from creators
Follow a game and its updates come to you.
INKBLADE is playable in your browser
Five waves and the Nameless are in. The test bot cleared a full run in 3 minutes 13 seconds with 36 kills. New: a brush-glyph combo counter and a perfect-timing parry.
PAPER HEIST: the full caper
Crack the three-dial vault, collect the eight dossiers and transmit the carbon copy before you slip out. New: paper-plane distractions and a confetti cover.
Lanternfall is finished
All four levels, two save shrines and the three-phase fight with the Dimmer. It ships as its own signed Mac app, and now runs in the browser too.
Clearer skies over the carrier
The cloud layer was rebuilt so the jet climbs through it without holes, and the catapult launch was reworked.
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Arcwright is free. Download it, describe your game, and watch Claude Opus 5.5 build it in front of you.
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