The high-speed OpenGL, OpenCL, OpenAL, OpenXR, GLFW, SDL, Vulkan, Assimp, WebGPU, and DirectX bindings library your mother warned you about.

The Open Toolkit library is a fast, low-level C# wrapper for OpenGL, OpenAL & OpenCL. It also includes windowing, mouse, keyboard and joystick input and a robust and fast math library, giving you everything you need to write your own renderer or game engine. OpenTK can be used standalone or inside a GUI on Windows, Linux, Mac.

A low-level, portable graphics library for .NET.

Unreal Engine Archives Explorer

a 2D Game Development Framework

ClassicUO - an open source implementation of the Ultima Online Classic Client.

Modern OpenGL bindings for C#.

🍏Object Oriented OpenGL in C#.

Official binding of SFML for .Net languages

A re-implementation of Freelancer

Proof-of-concept library for generating HLSL, GLSL, and Metal shader code from C#,

An Open Source C# 3D Game Engine under MIT license, inspired by Unity and featuring a complete editor

A spare-time C# .NET 8 game engine project. Cross-platform, multi-threaded.

C# OpenGL Particle Simulation, GPU accelerated

OpenGL Toy-"Engine" with Wavefront Path Tracer and Rasterizer with Voxel Cone Tracing/Global Illumination

A C# 2D Pokémon game engine and map editor.

A fast native control for OpenTK 4.x + 3.x on WPF.

A simple, lightweight yet highly versatile OpenGL graphics library

The fastest free real-time C# graphs and charts for WPF or natively using OpenGL. Better than LiveCharts, freer than SciChart.

c# port of Three.js