True Game Engine
Golem is a fully featured game engine, not just a middleware. Write game logic on the server, including physics and navigation.
v0.2.1 Beta Release
Multiplayer, Done Right
Write the backend in Go, generate clients for multiple languages and engines, and ship with confidence. Built for devs who need server-authoritative worlds with high player and entity density.
Generated clients
Unity: MoveCommand
Phaser: CastCommand
Ebiten: AimCommand
commands ->
Authoritative Go server
Tick 12842
physics nav interest
state ->
Filtered updates
player.position
nearby entities: 37
hidden entities: 214
server tick: validate commands -> simulate world -> stream diffs
One backend. Multiple frontends. Actually open.
No closed core, no paywalled features, no black boxes. Golem is designed as an open source foundation for multiplayer games.
Modular By Design
Physics and navigation sit behind interfaces with multiple backends, letting you trade speed for depth as your game needs.
Superior Performance
Golem is purpose-built for game backends, supporting hundreds of players and thousands of entities in the same map.
Schema-Driven
Zero boilerplate. Define entities, commands and events in YAML to generate server scaffolding and type-safe client classes.
Multi-Stack Clients
Generate integrations for C# / Unity, JavaScript / Phaser, Go / Ebiten, with one shared protocol used all clients.
Authoritative by Default
Clients send input. The Go server runs the simulation. Field-of-interest sends each player only what they're meant to see.
Batteries Included
Helpers that save you weeks, such as world snapshots and map tile serving for 2D games. Less plumbing, more features.
Modern Networking
WebTransport (HTTP/3) with custom reliable/ordered datagram delivery modes over UDP. For next-gen browser games.
One-Click Deploy Path
Push live through our cloud in seconds and scale at will. No infrastructure setup stands between you and your players.
Build worlds on solid ground
Stop fighting netcode and infrastructure. Start writing game logic on a backend built for performance, scale, and total authority.
Get Started Now