ThinkPHP Framework
A game framework written with osu! in mind.
Generate ready-to-use disc images for your Sega Dreamcast system !
Cross-platform 2D and 3D game engine
Game engine supporting many 3D/2D formats and graphic effects
Make games with Lego-like building blocks
C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT
Self-hosted CMS platform based on the Laravel PHP Framework
Open source library for creative expression on the web, desktop, etc.
Reactive extensions for Unity
A free 3D game engine to create games and realtimes scenes for Windows
Free and Open Game Programming Language for Windows and GNU/Linux
Orx: Portable Game Engine
ReShade is a generic post-processing injector for games and videos.
Asphyre is a cross-platform framework for Delphi and FreePascal.
INSTEAD - Simple Text Adventure Interpreter.
A starter development kit that let you develop FF6-like games on PC.
IRB is a game creation toolkit