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MusterBox Developers The MusterBox developer platform connects games to player identity, tournaments, match sessions, and secure purchases — from a single SDK. The same core ships for Unity, Godot, Unreal Engine, Bevy, Cocos, Defold, and the browser. Get started
Quickstart Connect a game to MusterBox in about ten minutes.Install the SDK Packages and configuration for your engine.API reference The verified public API contract.Core concepts How games, sessions, and claims fit together.

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What you can build

  • Published-game integration — your game launches with a match context and reports its outcome through a mutually-confirmed claims protocol.
  • Player identity — the SDK handles login, token refresh, and logout; only the backend verifies identity.
  • Secure purchases — PIN-verified purchases through the SDK’s PurchaseClient, with an on-device integrity pre-flight.
  • Realtime events — submit events and receive session, wallet, and status events from the realtime event plane.

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The core principle: the SDK is a bridge, not intelligence

The browser and the device are never the source of truth:
  • The backend owns identity and sessions.
  • A match outcome is accepted only when both participants independently claim the same result using their own single-use session tokens.
  • The SDK never sees wallet private keys — custody stays in MusterBox’s MPC layer.

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Next steps

  • Compatibility — SDK versions, profiles, and the compatibility matrix.
  • Support — Account, security, and integration help.
  • Changelog — Version history and migration notes.
Last modified on September 10, 2026