QUIC Networking
Zero-RTT UDP transport with TLS 1.3. Low-latency replication that survives packet loss in the sprawl.
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REDSPACEM
Open-source multiplayer framework for Cyberpunk 2077 & open-world games
Persistent worlds, authoritative simulation, real-time sync — the engine that powers your next-generation RP servers.
// core capabilities
BUILT FOR NIGHT CITY
ECS Simulation
Authoritative Bevy ECS world simulation. Deterministic tick loop, predictable state, easy rollback.
TypeScript Scripting
Script your gamemode with modern TS running on a sandboxed QuickJS host. Type-safe, hot-reloadable resources.
Open-World Support
Designed for Cyberpunk 2077 and other open-world titles. Vehicle sync, interiors, weather, and streams-in.
Mod SDK
Layered SDK from a public RPC client to server types and DI. Build resources without touching the closed Rust core.
Docker Deploy
One-command server provisioning with Docker Compose. Runs comfortably on small VPS footprints.
// architecture
HOW IT CONNECTS
GAME CLIENT
Mod runtime · local prediction
AUTHORITATIVE SERVER
Bevy ECS tick loop · QuickJS TS host
The game client streams input and state over a QUIC RPC bridge to an authoritative ECS server. Gamemode logic runs as TypeScript resources inside a sandboxed QuickJS host — full documentation lives at redspace.online/docs.
// tech stack
POWERED BY RUST & CO.
RRust
TSTypeScript
QQUIC
EECS / Bevy
JSQuickJS
DDocker
// get started
DOWNLOAD THE SDK
CURRENT SDK
v0.1.0
Install the RPC runtime package with your package manager and start building a gamemode in minutes.
npm i @redspacem/rpc