Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Cocos simplifies game creation and distribution with Cocos Creator
Multi-platform 2D and 3D game engine
The game engine for everyone
Voxel game-creation platform with easy modding and game creation
GameServer is a sophisticated, game server designed for online games
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
The AWS GameKit Plugin for Unreal
2D Game Engine
The Atomic Game Engine is a multi-platform 2D and 3D engine
Visual Novel engine, editor and game development.
An Open Engine for use on the OUYA
cross-platform 2d game engine