Solar2D Game Engine main repository (ex Corona SDK)
websocket and http client and server library, with TLS support
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Cross-platform layout engine which implements Flexbox
Simple and flexible programming language for applications development
ALFOUR Programming language. Simple, safe, power, multi-platform.
A portable peer to peer voice-chat/walkie-talkie.
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Urho3D Game engine
A 2D game engine and level editor
Highly customizable library for procedural world generation
C++ High level framework thinked for javascript
A public domain cross platform 3D game
Open Game Bootstrap
plugin-based RPG manager in C++ and Qt5
This is a hacking style game set in the early '80s
2D physics engine for games
3D Game engine
C++ Framework for slot machine games
Cross-platform 2D game engine