Games made with GPT-6 Astra: what's in this collection and how they were built
OpenAI released GPT-6 Astra on 3 September 2026. Among the things it does well is build a playable game from a prompt — the model writes the code, tests it, and, through ChatGPT Sites, publishes it to a public address. OpenAI's own write-up on building games with Astra shows three examples (Void Explorer, Sunwake and Hollowflux) and describes the workflow: describe the game, iterate, then ask for it to be deployed with public access.
The practical result is a wave of small browser games appearing on *.chatgpt.site addresses. They tend to share a shape: one HTML file, no external assets, playable offline once loaded, made by one person in a session or two. That shape is also what makes them fragile — free hosting goes over quota, authors move on, links die. This collection exists to keep the good ones reachable.
Which games here came from that pipeline
16 of the 53 games on the site were published through ChatGPT Sites:
- Mini Moto — A motocross park you run rather than a bike you ride: sculpt the dirt, set eight riders' skills and race strategy, then watch them lap Pine Ridge for real — with an optional Road Rash Mode that arms every rider with grenades, shields and melee weapons.
- Dual-World Adventure — A pixel-art brawler-platformer in two chapters with two switchable heroines: fight black-hatted thugs across the rooftops and streets of an old town on the way home from school, then fall into a wuxia cloud realm to ride a banana-cat and fight a second cast of enemies in an entirely different setting.
- King Kai Planet — An unofficial Dragon Ball fan scene: walk King Kai's tiny planet at ten times Earth's gravity, past the house, the convertible, the fruit trees and the start of Snake Way, or pull back to an orbit view.
- APEX CLUB — Three laps of Bay Circuit with eight karts on the grid and a garage to pick yours from. Race solo for the win, or take a local four-versus-four in team colours.
- Sunjing Puzzles — A 3D workshop with two classic Chinese wooden puzzles: take a six-piece burr lock apart piece by piece, then solve two Huarong Dao sliding-block layouts.
- Moonlit Forge — One cottage, six moments. Scroll a small 3D diorama from nightfall through first light and all four seasons. A scene to look at, not a game to play.
- Iron Echo — A vertical arcade shooter in 1990s Japanese style. Hold the lock key to web up to six targets, release to fire a homing volley, and fly three timed sectors into an air fortress.
- No Moat — A roguelike deckbuilder about running an AI startup. Recruit teammates, build a deck and fight copycats, bugs and the cloud bill across three regions and their bosses.
- Orbital Garden — 48,000 points of light re-form into a star flower, a gravity ring or a spiral galaxy. Disturb the sculpture, pause it, and save a moment as a 2000x2400 poster.
- RB19 Engineering Lab — An interactive engineering recreation of the 2023 Red Bull RB19 F1 car: explore its aerodynamics, hybrid power unit and suspension mechanics.
- DUST II · Desert Ops — A free-roam / flight-mode remaster of the classic CS Dust II map. Explore every corner of a familiar battlefield.
- Mosswing — One tap unfolds a quiet flight through a floating garden. Playable offline.
- Balatro — A pixel-art poker deckbuilder you can play offline. Single file, no dependencies.
- Melon Lab — Let fruit squish, deform and merge like jelly. Adjust the fluidity, stir the pool, and merge your way to a giant watermelon.
- Super Mario · Mushroom Kingdom — Back to the Mushroom Kingdom. Classic pixel-art side-scrolling platforming — collect coins, leap over pipes, reach the flag. Keyboard and touch supported.
- Infinite Garden — 48 gardens, 8 volumes, gravity, water, phase, echo and boundary. A fully offline, single-file 3D exploration puzzle game.
We do not claim to know which model version produced each one; ChatGPT Sites predates Astra and hobbyists use whatever they have. What we can say is where each game is hosted and who published it, and every game page shows both.
The rest of the collection
The other games come from GitHub Pages, Netlify, Vercel, Cloudflare Workers and personal pages. They are here because they fit the same idea — free, self-contained, made by an individual. Two of them ship their source publicly, which is why we can mirror them in full.
How mirrors and credits work
Where a game is a self-contained file we keep an unmodified copy on this site so it keeps working if the original goes down. Games that need a server, or whose authors have not published a build, are embedded from the original. Every page links to the original address and shows the author's handle where the address makes it visible. Rights holders can have anything removed by emailing the address in the footer.
Adding games
New games are added as they appear. If you have made one with GPT-6 Astra or ChatGPT Sites and want it listed, send the public link via the contact page.