s&box is a modern game engine, built on Valve's Source 2
Stride (formerly Xenko), a free and open-source cross-platform C# game
Helix Toolkit is a collection of 3D components for .NET
3D Engine c++
A re-implementation of Freelancer
A .NET ascii/ansi console engine written in C# for MonoGame and XNA
Virtual X-Ray Imaging Library on GPU
Murder is a pixel art ECS game engine
slab3d is a real-time virtual acoustic environment.
Explore and dissect a complete brain model in VR
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
UIWidget is a Unity Package which helps developers to create apps
Portable game engine with main focus on point-and-click adventures
a 2D Game Development Framework
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
A rudimentary 2D isometric engine
.NET wrapper for the Irrlicht Engine
3D .NET engine for Windows, Linux, Mac
Dragging and Dropping Components for Multi-projection Applications
XNA based game engine completely written in c#
An expanded XNA game creation framework
A cross-platform game framework based on OpenGL and GObject.