An AI chat writes the code
- What you get
- A folder of raw code.
- Changing one thing
- Ask again. It rewrites the code, and something else often breaks.
- Worlds and art
- Shapes drawn in code.
- Does it work?
- You find out when you play it.
A real engine, built for AI
Describe a game. Arcwright builds it in a real engine, and proves it works.
Not a pile of AI code that breaks when you touch it. A real editor where you can change anything. No coding needed.
Castaway started as this one sentence.
- Island and sea
- 44 palm trees
- Driftwood to find
- Signal fire and sunset
Agents build it in the editor.
A bot plays it through the real controls.
Proof · Castaway
- Tests
- 10 / 10 pass
- Bot runs
- won 10 / 10
- Frame time
- 16.67 ms
✓ Verified
Nothing counts until the report says it works.
Every frame is from the engine. No mockups.
AI agents build it live in a real editor, with real levels and 3D objects you can open and change. A bot plays every build and finds what's broken. Ships to Mac, Steam Deck and Windows.
Free to join. Invites go out in the order people sign up.
- 479
- Automated tests Oct 7
- 10 of 10
- Castaway, bot runs won proof report, Oct 5
- 16.67 ms
- Castaway, median frame M4 Pro, 60 Hz display
- 217 of 217
- Replay checkpoints matched Castaway golden replay, Oct 7
Any AI can write a game. That's not the hard part.
The hard part is everything after: changing one thing without breaking three others, making it look right, and knowing it actually works. That takes a real engine.
An AI plugged into a big engine
- What you get
- An engine made for people, driven through a narrow plug-in.
- Changing one thing
- The AI can only reach the tools the plug-in exposes, and the connection is fragile.
- Worlds and art
- Whatever you can find and import yourself.
- Does it work?
- You find out when you play it.
Arcwright
- What you get
- A real game in a real engine, built for AI from day one.
- Changing one thing
- Click it and change it, or ask. Every tool is the AI's tool too. Every step can be undone.
- Worlds and art
- Real 3D objects, terrain, water and light, made in the engine.
- Does it work?
- A bot plays every build and reports exactly what broke.
For game developers, players with an idea, and people who have never made a game.
From one sentence to a game that's proven to work.
It builds
AI agents build your game inside a real editor while you watch. Open any object and change it yourself. Every step can be undone.
It plays
A bot plays every build through the real controls, again and again, on different seeds.
Proof · Castaway
- Tests
- 10 / 10 pass
- Bot runs
- won 10 / 10
- Frame time
- 16.67 ms
- Checked in
- 16 s
✓ Verified
It proves it
When something breaks, it names the exact cause, gets fixed, and every build ships with a report.
Made in Arcwright. Played by the bot.
Castaway
Survival · built from one sentence · bot won 10/10
Circuit
Racing · 5/5 races finished
Harbor Run
Boats · same finish on Mac and Deck
Lights Out
Horror · in development
22,909crash tests run
5/5Circuit races finished by the bot
528commits since Oct 4
3platforms: Mac, Steam Deck, Windows
Built on a Mac. Plays on a Steam Deck.
Same game, same seed, same result on both. Castaway: 218.8 s on each. Harbor Run: 2:12.78 on each.
It makes its own 3D objects.
From one reference sheet to a finished model, checked against the reference from every side.
Built in public, every day.
One person who doesn't write code, directing AI agents. Nothing merges until the tests pass.
Follow the daily build on XFirst commit at 5:27 am. Before 8 am, an agent had built a stealth level live in the editor.
Castaway, Circuit and Harbor Run built. The bot wins all three.
Running on Steam Deck at 60 fps. Finish times match the Mac to the hundredth of a second.
479 tests. First playtest with a controller in hand. Lights out in the Backrooms. Named it Arcwright.
Questions
Can't I just ask an AI chatbot to make my game?
You can get code that runs. But it isn't in an engine, so there's no editor to fix things in, every change means rewriting code, and fixes tend to break something else. In Arcwright the game lives in a real engine: levels, objects and lights you can open and change, and a bot that checks every build.
Why not connect an AI to an engine I already know?
Those engines were built for people clicking through menus. The AI only reaches what a plug-in exposes, and when the connection drops, the work stops. Arcwright was built for AI from the first line: every tool the editor has, the AI can use, and every result gets checked.
Do I need to know how to code?
No. You describe what you want and the agents build it in the editor while you watch. If you do code, every step they take is editable by hand.
Is the footage on this page real?
Yes. Every game clip and screenshot was recorded in the engine. The space art behind the headline is decoration, not a game.
What does the bot actually check?
It plays each game through the real controls, many times, on different seeds. The report lists the tests that passed, how often it won, frame times and anything that broke, with the object that caused it.
Where do the games run?
Mac today, Steam Deck today, Windows builds from the same source. Consoles and online multiplayer are not here yet.
Who owns what I make?
You do.
When can I use it?
Founding creators get in first, in the order they joined. Join the waitlist and we'll email you when your invite is ready.
Your game is finished.
Built, played, proven. Founding creators get the editor first, in the order they joined, and a vote on what we build next.