NetCode for web video games

Node.js helpers for openrtc-netcode.

React context and hooks for openrtc-netcode.

A small lobby, mesh, message, and replicated-state netcode layer built on OpenRTC.

Physics and netcode SDK for multiplayer game servers

🏛️ game ecs and netcode

Open Source Kinematic Character Controller for NetCode.

Zero-GC binary ring buffer + GGPO-shaped rollback Session for browser-native deterministic netcode. Single-file ESM, zero dependencies, zero allocations after construction.

P2P rollback netcode library for browser-based multiplayer games

BroadcastChannel-backed transport for @zakkster/lite-rollback. Same-machine, cross-tab rollback netcode. Ideal for tests, demos, and single-machine two-player play.

GGPO-style netcode for WebRTC-powered video games.

Handle-stable whole-world capture and restore for ecsia: the checkpoint substrate for rollback netcode and prediction.

typescript ecs for netcode

A library with the core utils for netcode development in Node.js

Netcode for GameObjects is a high-level netcode SDK that provides networking capabilities to GameObject/MonoBehaviour workflows within Unity and sits on top of underlying transport layer.

Deterministic input-synced netcode engine for real-time games.

Provides the core Entity-Component-System (ECS) engine for deterministic multiplayer games with rollback netcode. Manages all game state in a single ArrayBuffer, orchestrates simulation ticks with snapshot/rollback, implements a dependency injection conta

Client-side prediction and server reconciliation framework for Netcode for GameObjects

Lightweight state-synchronization networking framework for H5 games

Immutable recoverable-state captures over plain data — captureSnapshot deep-clones and deep-freezes a state object, restoreSnapshot deep-assigns a snapshot back into live mutable state, interpolateSnapshots schema-aware lerps numeric leaves between two sn