Cross-platform 2D game engine focused on ultimate productivity
A .NET ascii/ansi console engine written in C# for MonoGame and XNA
Vivid3D is an open-source 3D engine with powerful 2D UI.
A Tile-based Game Engine written in C# mimicing retro consoles.
XNA based game engine completely written in c#
WGFX 2D Game Engine
RPG Games without coding!