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

The Unity Machine Learning Agents Toolkit (ML-Agents) is an open-source project that enables games and simulations to serve as environments for training intelligent agents using deep reinforcement learning and imitation learning.

AssetStudio is a tool for exploring, extracting and exporting assets and assetbundles.

Unity3D Client And C# Server Framework

Provides an efficient allocation free async/await integration for Unity.

JinYongLegend-like RPG Game Framework with full Modding support and 10+ hours playable samples of game.

Unofficial revival of the well known .NET debugger and assembly editor, dnSpy

Unity il2cpp reverse engineer

Entitas is a super fast Entity Component System (ECS) Framework specifically made for C# and Unity

Reactive Extensions for Unity

UIEffect is an open-source package that allows you to intuitively apply rich UI effects directly from the Inspector or via code. Combine various filters, such as grayscale, blur, and dissolve, to decorate your UI with a unique visual style!

This is literally a game framework, based on Unity game engine. It encapsulates commonly used game modules during development, and, to a large degree, standardises the process, enhances the development speed and ensures the product quality.

Extremely Fast MessagePack Serializer for C#(.NET, .NET Core, Unity, Xamarin). / msgpack.org[C#]

This repository is for the legacy Mixed Reality Toolkit (MRTK) v2. For the latest version of the MRTK please visit https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity

Unity Open Project #1: Chop Chop

Unity / XNA game patcher and plugin framework

A library for patching, replacing and decorating .NET and Mono methods during runtime

#1 Open Source Unity Networking Library

GUI Application to work with engine assets, asset bundles, and serialized files

Render particle effect in UnityUI(uGUI). Maskable, sortable, and no extra Camera/RenderTexture/Canvas.