Engine · Runtime

Authoritative Runtime

Server-owned execution. The backend is the source of truth, so state stays consistent, fair, and un-cheatable.

The server owns the truth. Every action is validated where it cannot be tampered with, so play stays consistent, fair, and impossible to cheat, without you writing a line of backend code.

Server-owned state

The backend is the source of truth, not the client.

Fair by default

Actions are validated server-side, so cheating has nowhere to hide.

No backend to build

The authoritative loop comes with the engine, ready to run.

Part of one engine

Describe it. Gessa builds it.

Worlds, games, agents, and simulations, built from the same engine, in your browser, in minutes.