Naia is a free Rust networking library for multiplayer games, centered on server-controlled entity replication and typed message passing. It tracks changes to replicated component fields and sends them to clients in scope, which receive spawn, update, and despawn events. Clients and servers exchange typed messages over channels with configurable ordering and reliability. Servers can grant, deny, or revoke a client's write authority over an entity. Naia is ECS-agnostic and includes adapters for Bevy and macroquad; users and entities must share a room for replication, allowing rooms to represent matches, zones, or lobbies. Native Linux, macOS, and Windows clients use UDP, while browser clients can use WebRTC data channels through WebAssembly builds. Native iOS and Android are not supported, though WASM clients can run in mobile web views. Naia provides tick-buffered input delivery for prediction and rollback, but developers supply prediction and interpolation logic. Its native UDP transport is unencrypted, and the library does not provide packet authentication or encryption.
Who it is for
Naia may suit Rust game developers building client-server multiplayer systems who need entity replication and typed messaging. It is relevant to teams using Bevy or macroquad, or browser clients built for WebAssembly.
What is good
- Supports server-authoritative entity replication.
- Typed message channels offer configurable reliability.
- Includes Bevy and macroquad adapters.
- Room scoping separates matches, zones, or lobbies.
- Tick-buffered input delivery supports prediction and rollback.
What to know first
- Native iOS and Android are not supported.
- Prediction and interpolation logic are not built in.
- Native UDP transport is unencrypted.
- Packet authentication and encryption are not provided.
Verdict
Naia supplies replication, messaging, and transport building blocks for multiplayer games, but developers must provide important gameplay and security layers. Its native and browser networking options have different transport support.
Compared on game networking middleware
- Free plan
- Yes
- Network model
- client-server
- Supported platforms
- Linux, macOS, Windows, browser/WebAssembly, iOS and Android via WebView
- Rollback netcode
- Yes
- Transport protocols
- UDP and WebRTC data channel
