Open QR Code is an open-source, cross-platform app
Desktop/Android/HTML5/iOS Java game development framework
Multi-platform 2D and 3D game engine
Free game engine for development of desktop, mobile, and web games
A layer built on top of the Insight Toolkit (ITK)
Memory Efficient Serialization Library
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Orx: Portable Game Engine
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
A free Chess program for Windows with a large set of features
inputbox password WIN OSX GTK QT Console VCPKG C# Lua R Fortran Pascal
A 2D game engine and level editor
MAME Android Emulator.
A cross-platform 2D game engine
Easy fine console input/output for java
scriptable game engine with built-in support for 2D graphics and sound
The Atomic Game Engine is a multi-platform 2D and 3D engine
2D ARPG Engine
Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
A traditional top-down OpenGL car racing game
2D game creation software
A generic 2D engine for any kind of game
2D physics engine for games