Cocos simplifies game creation and distribution with Cocos Creator
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Open source free capture HTTP(S) traffic software ProxyPin
Voxel game-creation platform with easy modding and game creation
An unofficial rules engine for the world's greatest card game
3D modeler, 3D game maker, 3D demo maker
Object-Oriented Database in C# with PowerShell interface
2D Game Engine
The Atomic Game Engine is a multi-platform 2D and 3D engine
cross-platform 2d game engine