Describe a game. Play it.
Sandbox turns plain English into playable three.js games. The AI plans the scene, writes the code, and streams it live in a cloud sandbox. If you can describe it, you can play it.
From a sentence to a playable game
No engine to install, no code to write. Three steps and you're playing.
1 · Describe
Say what you want to play
“A space racer with neon tracks and three laps.” Type it like you'd tell a friend — the more detail, the better the game.
2 · Watch it build
The agent does the work
It plans the scene, writes the three.js code, and fixes its own mistakes — streaming every step so you can watch it think.
3 · Play & refine
Play it, then make it yours
Every game runs live in its own cloud sandbox. Ask for changes in plain words — faster laps, harder enemies, a new track.
Everything a game builder needs
Playable 3D worlds
Real three.js games — racers, shooters, puzzles and whole worlds — built on a seeded engine toolkit, not a template.
Live cloud preview
Each game runs in its own Daytona sandbox with a live preview, so what you see is what the code actually does.
Three Claude models
Pick Opus for the biggest builds, Sonnet for the everyday, or Haiku for quick experiments — per organization.
Credits that make sense
You pay for the AI work, not the seat. Usage is metered in credits and every build shows what it cost.
Organizations & teams
Create an organization, invite your team, and keep every game, credit and member in one place.
Your games, saved
Every game you build stays in your library with its full history — come back, tweak it, and play it again.
Simple pricing
Start free. Upgrade when you want more credits every month.
Free
$0 to start
- · $1 of credits included
- · All three Claude models
- · Live cloud preview for every game
- · Your games saved in your library
Builder
$10/month
- · $10 of credits every month
- · Everything in Free
- · Organization subscriptions
- · Pay with Stripe or Razorpay