Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The most popular .NET UI client technology

📷 A modern, cross-platform, 2D Graphics library for .NET

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

A fast, powerful, CommonMark compliant, extensible Markdown processor for .NET

A mod to make and play Terraria mods. Supports Terraria 1.4 (and earlier) installations

🃏 Get your Steam Trading Cards the Fast Way (Fast Mode Extension 🚀)

🔣 Compose Key for Windows

The modding API for Stardew Valley.

PolySharp provides generated, source-only polyfills for C# language features, to easily use all runtime-agnostic features downlevel. Add a reference, set your C# version to latest and have fun! 🚀

SharpShell makes it easy to create Windows Shell Extensions using the .NET Framework.

JSON Schema reader, generator and validator for .NET

Provides advanced unified lighting across many different brands RGB peripherals

A lightweight and fast parsing library for C#.

A library for creating, reading and editing PE files and .NET modules.

C# discriminated union source generator

A windows usermode controller driver for the steam deck internal controller.

... the little C# ECS that loves you back!

BOTW Save Manager for Switch and Wii U

An easy to use interface between Unity3D / C# and a Wii Remote controller.

Vocaluxe is an open source singing game inspired by SingStar™ and Ultrastar Deluxe.

Sample programs showing how to use Xamarin.Mac on OSX.

C# port of https://github.com/memononen/fontstash

C# wrapper for a Windows keyboard driver. Can simulate keystrokes and mouse clicks in protected areas like the Windows logon screen (and yes, even in games). Wrapping http://oblita.com/Interception

A free cross-platform game development framework.

Build Redirction and romfs nsps out of .nros

Simple & efficient library for deep copying .NET objects

📃 Next-generation Valve's key value framework for .NET

An Open Source .Net Constraint Programming Solver

A tool for extracting contents (assemblies, configuration, etc.) from a single-file application to a directory, suitable for purposes like malware analysis.

MSBuild task for ILRepack which is an open-source alternative to ILMerge.