MavonEngine is a full-stack Three.js game engine purpose-built for single player or real-time multiplayer. Most browser game engines treat networking as an add-on. MavonEngine ships with it built in — rendering, physics, networking, animation, particles, and debugging in one cohesive TypeScript package.

🌐 mavonengine.com · 📖 Docs · 💬 Community · 🎮 Live Demo

Most multiplayer browser games are held together with duct tape — a rendering library here, a physics library there, a networking layer bolted on top. MavonEngine is different.

• Server-Authoritative Architecture — The server runs a simplified hitbox scene alongside the client's full 3D world. Real hit detection, raycasting, and spatial queries. No client trust.
• Three.js Rendering — Full Three.js access with custom GLSL shader support, debug rendering modes, and WebGPU-ready rendering pipeline.
• Integrated Rapier Physics — Kinematic character controller, slope climbing, configurable colliders, and real-time physics debug visualization.
• WebRTC Networking Built In — Real-time data channels, automatic state sync, distance-based entity culling, and bandwidth monitoring. None of it bolted on.
• Write Once, Run Everywhere — Shared entity system runs on both server and client. No duplication. No drift.
• Full TypeScript — Comprehensive types, Tweakpane integration, and performance monitoring so you catch bugs fast and ship faster.

MavonEngine is purpose-built for anything that needs players, physics, and a world in the browser:

npx @mavonengine/create-bootstrap

import { MavonServer, MavonClient, Entity } from '@mavonengine/core'

const server = new MavonServer()

server.onPlayerJoin((player) => {
  const entity = new Entity({ position: [0, 1, 0] })
  server.world.add(entity)
  server.sync(player, entity)
})

server.start(3000)

Full documentation at mavonengine.com/getting-started

• 💬 Community Forum
• 🧱 Prefab Registry — drop-in grass, water, and more
• 🐛 Report a Bug
• ⭐ Star the repo if MavonEngine saves you from assembling the stack yourself

MavonEngine is open source. See LICENSE for details.

Built with TypeScript · Three.js · Rapier · WebRTC
mavonengine.com