---
title: "Deploy Bun WebSocket Game Server"
description: "Multiplayer WebSocket relay server with rooms and msgpack. Bun-native."
category: "Other"
url: https://railway.com/deploy/bun-websocket-game-server
---

# Deploy Bun WebSocket Game Server

Multiplayer WebSocket relay server with rooms and msgpack. Bun-native.

**[Deploy Bun WebSocket Game Server on Railway](https://railway.com/template/bun-websocket-game-server)**

- **Creator:** mavisakalyan
- **Category:** Other

## Template content

### bun-ws-gameserver

- **Source:** mavisakalyan/bun-ws-gameserver
- **Health check:** /health
- **Public domain:** Yes

## Documentation

# Deploy and Host Bun WebSocket Game Server with Railway

Room-based multiplayer WebSocket relay server using msgpack binary protocol. 5-8x faster than Node.js ws — same protocol, same clients. Bun-native.

## About Hosting Bun WebSocket Game Server

This template deploys a stateless WebSocket relay server built on Bun's native WebSocket API. Clients connect via ws:///ws/, get assigned a player ID, and all messages are relayed to peers in the same room using msgpack encoding. Uses Bun's built-in pub/sub for efficient room broadcasting, zero-allocation per-connection state via ws.data, and includes per-client rate limiting, keepalive, origin allowlist, and /health + /metrics endpoints.

## Common Use Cases

- Multiplayer browser games (2D/3D position sync, input relay)
- Collaborative real-time apps (whiteboard, document editing)
- Chat rooms with binary protocol efficiency
- IoT dashboards with low-latency pub/sub
- High-throughput relay where Node.js ws becomes a bottleneck

## Dependencies

- Bun 1.x (runtime — includes native WebSocket server)
- @msgpack/msgpack (binary serialization)

### Why Deploy on Railway?

Railway is a singular platform to deploy your infrastructure stack. By deploying Bun WebSocket Game Server on Railway, you get instant deploys from GitHub, automatic SSL, horizontal scaling, and built-in metrics — no Docker or infrastructure config required.

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Open this page in a browser: https://railway.com/deploy/bun-websocket-game-server