One framework for creating powerful cross-platform games
Ze Text Adventure game Builder : Create as you play !
Vivid3D is an open-source 3D engine with powerful 2D UI.
Sdk library for creating 2048 game in c#.
2D Game Engine
Portable game engine with main focus on point-and-click adventures
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
A starter development kit that let you develop FF6-like games on PC.
3D .NET engine for Windows, Linux, Mac
Essence : Ultima Developper Kit
Solve, explore and create Sudokus
c# lua bind with unity3d project for game development
Essence : Ultima Fiddler+
Recruit-A-Friend Support for HonorBuddy
A cross-platform game framework based on OpenGL and GObject.
Open source network game service
this is tic tac toe or zero cross game(for windows os)
An open source skateboard games engine written in C# and .NET.
Open Source Virtual World and MMOG Development Platform
A framework for games with defense towers along a path.
Parser for Monkey Island 1 Special Edition .pak files