Cysharp / ZLinq

Zero allocation LINQ with LINQ to Span, LINQ to SIMD, and LINQ to Tree (FileSystem, JSON, GameObject, etc.) for all .NET platforms and Unity, Godot.

AnkleBreaker-Studio / unity-mcp-server

Unity MCP Server — 268 tools for AI-assisted game development. Connect Claude, Cursor, or any MCP client to Unity Editor & Unity Hub. Scene management, GameObjects, components, builds, profiling, Shader Graph, Amplify, terrain, physics, NavMesh, animation, MPPM multiplayer & more. Free & open source by AnkleBreaker Studio.

Unity-Technologies / com.unity.netcode.gameobjects

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.

SaiTingHu / HTFramework

Unity HTFramework, a rapid development framework of client based on Unity.

Unity-Technologies / multiplayer-community-contributions

Community contributions to Unity Multiplayer Networking products and services.

ruccho / YAUI

Yet Another Unity UI: a fast, Flexbox-based UI system on GameObjects.