Documentation

Everything to build, publish and get played.

Step-by-step guides and the complete reference of the Sandbox engine: the studio, the scene format, no-code rules, the scripting API, publishing to Robinhood Chain and builder rewards.

Jump toScriptingScene formatHTTP APIThe Sandbox.sol contractShortcuts and 3D navigation

Get started

Four short reads to go from zero to a playable game.

01IntroductionSandbox is a 3D game engine that runs in the browser and publishes to Robinhood Chain. An overview of the studio, the runtime and the platform.Read02The six stepsHow the Sandbox studio is laid out: the three ways to start a project, the eight starting maps, then Map, Cast, Build, Rules, Test and Publish — what each step is for and when to skip ahead.Read03QuickstartYour first playable Sandbox game in five minutes: pick a starting map, cast a character, place the props, write one rule, test in the browser and publish.Read04Studio tourThe Sandbox studio panel by panel: the entry screen, the six steps (Map, Cast, Build, Rules, Test, Publish), the asset editor, quick add, autosave and deep links.Read

Popular guides

For developers

When rules are not enough, a JavaScript script sandboxed in a Worker takes over.

coins.jsJavaScript
sandbox.on('start', () => sandbox.set('coins', 0))

sandbox.on('pickup', ({ role }) => {
  if (role !== 'coin') return
  const n = (sandbox.get('coins') ?? 0) + 1
  sandbox.set('coins', n)
  if (n >= 10) sandbox.win('All coins!')
})
Scripting APIScene formatHTTP API

Browse the documentation

34 pages in six parts.

Get started

What Sandbox is, your first game in five minutes, the studio and its shortcuts.

Create

Library assets, import, modelling, voxel, animation and AI generation.

Build a world

Terrain, water, sky, moods, entity roles, NPCs and spawners.

Game logic

Modes, templates, no-code rules, variables, HUD and JavaScript scripting.

Publish and earn

Publishing, plays and boards, the 24-hour reward vault, the contract and the token.

Reference

Scene format, HTTP API, export formats, FAQ and glossary.