Naia

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What Naia is

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 suits

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 it does well

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.

Limits

The free plan is the library. It does not include built-in prediction or interpolation logic, packet authentication or encryption, anti-cheat, application-layer rate limiting, or validation of client-authoritative component values. Native iOS and Android support is absent; WASM clients can run in mobile WebViews.

Getting started

Open the Naia GitHub project.
Choose a native Linux, macOS, or Windows client using UDP, or a browser WASM client using WebRTC data channels.
For browser builds, use wasm-pack or trunk and enable the wbindgen feature.
Use a Bevy or macroquad adapter if it fits the project’s ECS.
Consult the linked API documentation, guides, and demos.

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.

Questions

Is Naia free?

Yes. Its pricing model is free, with a free plan and no free trial.

Which platforms can use Naia?

Native clients are supported on Linux, macOS, and Windows. Browser clients can use WebAssembly and WebRTC data channels; native iOS and Android are not supported, but WASM clients can run in WKWebView or Android WebView.

Which networking transports does it use?

Native clients use UDP through naia-socket-native. Browser clients can use WebRTC data channels through the WASM target.

Does Naia include rollback netcode?

It provides tick-buffered input delivery for prediction and rollback, but prediction and interpolation logic are not built in.

Is Naia open source, and what are its licenses?

The repository lists Apache-2.0 and MIT licenses.

What security features does Naia provide?

Naia describes itself as a networking library rather than a security framework. Its native UDP transport is unencrypted, and it does not provide packet authentication or encryption; browser WebRTC data channels use DTLS, while AuthEvent credentials are plaintext from Naia’s application-layer perspective.

Facts from Naia's own pages

Authority: The server can delegate write authority over an entity to a client and can grant, deny, or revoke that authority. · github.com, 2 Oct 2026
Browser networking: Browser clients can use WebRTC data channels with the wbindgen feature and builds made with wasm-pack or trunk. · github.com, 2 Oct 2026
Browser security: The security policy says browser WebRTC data channels use DTLS, while AuthEvent credentials are plaintext from Naia’s application-layer perspective. · github.com, 3 Oct 2026
ECS compatibility: Naia is ECS-agnostic and includes Bevy and macroquad adapters. · github.com, 3 Oct 2026
Engine support: Naia is ECS-agnostic and includes Bevy and macroquad adapters. · github.com, 2 Oct 2026
Integrations: The project lists adapters for Bevy and macroquad, plus optional feature-gated metrics and tracing integration. · github.com, 3 Oct 2026
Licensing: The repository lists Apache-2.0 and MIT licenses. · github.com, 3 Oct 2026
Messaging: Typed messages support ordered-reliable, unordered-reliable, and unreliable channels, including tick-buffered channels for client input. · github.com, 3 Oct 2026
Mobile support: Native iOS and Android clients are not yet supported; the project describes running the WASM client in iOS or Android WebViews as an option. · github.com, 3 Oct 2026
Native networking: Linux, macOS, and Windows use UDP through naia-socket-native. · github.com, 2 Oct 2026
Not built in: Steam relay networking is not built in, though the Socket trait can be extended by a community crate. · github.com, 2 Oct 2026
Planned transport: Native QUIC transport with TLS 1.3 is listed as planned, with no set timeline. · github.com, 3 Oct 2026
Prediction: Naia provides tick-buffered input delivery for prediction and rollback, but prediction and interpolation logic are not built in. · github.com, 2 Oct 2026
Product: Naia is a Rust networking library for server-authoritative entity replication and typed message passing in multiplayer games. · github.com, 3 Oct 2026
Purpose: Naia is a Rust networking library for server-authoritative entity replication and typed message passing in multiplayer games. · github.com, 2 Oct 2026
Replication: The server sends changed replicated component fields to in-scope clients, which receive entity spawn, update, and despawn events. · github.com, 3 Oct 2026
Room scoping: A user and entity must share a room for replication, and rooms can represent matches, zones, or lobbies. · github.com, 2 Oct 2026
Security limits: Naia does not provide packet authentication or encryption, anti-cheat, application-layer rate limiting, or validation of client-authoritative component values. · github.com, 3 Oct 2026
Security model: Naia describes itself as a networking library, not a security framework, and states that native UDP transport is unencrypted. · github.com, 3 Oct 2026
Security reporting: The GitHub repository links to a security policy. · github.com, 2 Oct 2026
Support: The security policy asks people to report security issues privately to maintainers via Discord or email before filing a public GitHub issue. · github.com, 3 Oct 2026
Transports: Native clients use UDP, while browser clients can use WebRTC data channels through the WASM target. · github.com, 3 Oct 2026

Where Naia stands on Freedom251

Game Networking Middleware#17 of 29