Uses / Gaming

Describe the game. Play it in minutes.

Your AI assistant builds the scenes and scripts, plays the game and fixes what broke. You approve every change, then ship to Windows, Linux and the web.

Get started All featuresStatusAvailable

The editor running a medieval town, with the Activity panel listing changes made through the AI tools, each with Diff and Revert buttons — Every change your AI makes lands in the Activity feed, with Diff and Revert.

0.8 sfrom launching the editor to playing
174 MBinstall, editor and tools included
1 .exeto send a player on Windows

Cars, karts and boats, ready to drive.

Grip that depends on the surface under each tire, presets including a drifting kart, and boats that ride the real ocean waves.

Shown with a placeholder hull.

The profiler tab during Play: a half-second spike towers over the budget line in the frame strip, above that frame's flame graph

Find the frame that stutters.

Every frame against your budget. Click a spike for its flame graph, or ask your AI for the likely causes, ranked.

The shader panel over a medieval town: color-coded code beside sliders generated from it, a cost meter and a live preview of a lava sphere

Shaders with guard rails.

Sliders generated from your code, error hints, a cost meter and a live preview. One file works in both renderers.

The editor with the game running and the view ejected: a tall red banner selected in a medieval town, its Scale changed in the Details panel

Change it while it plays.

Edit a script, a scene or a shader and see it in the running game. No restart: an edited script keeps its saved state.

It checks its own work.

Told why, every time
When an action is refused, your assistant is told why, so it fixes the cause instead of guessing.
A playtester that plays
It drives the player toward the scene's goals and reports dead controls, soft locks and script errors.
You have the last word
Each change is marked with the AI that made it. Open the diff, or revert it in one click.

Export

Ship to Windows, Linux and the web.

Ready
Windows
One .exe for Windows 10 and 11. Players install nothing.
Ready
Linux
A Linux build, with a tarball or an AppImage beside it.
Preview
Web
A static folder any web host can serve, for browsers with WebGPU.
Coming
Mac, iPhone, Android
On the roadmap. Build your game now; export when they land.

The editor runs on Windows. Web export is in preview: it passes our automated browser tests, and checks on real graphics cards, Firefox and Safari come before we call it ready.

In the box

Coming

Now
Couch co-op
Split-screen play for up to four players with gamepads.
Next
Several assistants at once
More than one AI assistant building your game while you play-test it.
Later
Online multiplayer
Online multiplayer, built on the engine's fixed-step simulation and replays.

One prompt. Your engine is ready.

Paste it into Claude Code or Cursor. Free during the beta.

Get started

Describe the game. Play it in minutes.

Cars, karts and boats, ready to drive.

Find the frame that stutters.

Shaders with guard rails.

Change it while it plays.

It checks its own work.

Told why, every time

A playtester that plays

You have the last word

Ship to Windows, Linux and the web.

Windows

Linux

Web

Mac, iPhone, Android

In the box

Coming

Couch co-op

Several assistants at once

Online multiplayer

One prompt. Your engine is ready.