Top UNITY GitHub Repositories & Tools (2026)

freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

All Algorithms implemented in Python

Run Omarchy on MacOS without any setup.

Automate Docker container image updates

🔓Unlock Among Us: cosmetics, account, chat and more!🎉

Project AirSim is Microsoft's evolution of AirSim, an advanced simulation platform for building, training, and testing autonomous systems in high-fidelity virtual environments

AI automation skills specifically designed for Unity

.NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!

Community-curated topic and collection pages on GitHub

Unified Realtime/API framework for .NET platform and Unity.

AI Skills, MCP Tools, and CLI for Unity Engine. Full AI develop and test loop. Use cli for quick setup. Efficient token usage, advanced tools. Any C# method may be turned into a tool by a single line. Works with Claude Code, Gemini, Copilot, Cursor and any other absolutely for free.

Cacti ™

:christmas_tree: Giving back to open source for the holidays

Open-source CRM with native AI agent support. 37 MCP tools, REST API, self-hosted. Built with Laravel & Filament

Free, open source mental health communication web app to share experiences with loved ones

Official Unity Plugin for the Google Mobile Ads SDK

Provides a rich set of editor extensions and serialization extensions for Unity.

Unity support for both ReSharper and Rider

Unit testing and build system for C projects

URDF Loaders for Unity and THREE.js with example ATHLETE URDF Files open sourced from NASA JPL