Open-source, cross-platform, game-development tools
Test project with a 2D platform game developing in Godot 3.1
A minimalist and cross platform System Shock source port
Extensible HTML5 app for real-time collaborative projects
UI Kit for the Phaser game engine
Build Cross-platform Applications
MMORPG
C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT
scriptable game engine with built-in support for 2D graphics and sound
Realtime 3D engine for game development
Game engine allows you to create own MMORPG
3D .NET engine for Windows, Linux, Mac
Rich HTML UI engine for UE4
A game engine written in the D programming language
A Flash Molehill (Stage3D) GPU accelerated 2D game engine
a very lightweight advanced terrain-rendering and 3D map rendering sys
Free-roaming 3D racing game featuring advanced terrain rendering
Plugin based multi-purpose dev tool.
Cross-platform C framework very compact libraries and tools.
Performance enhancement API for RPG Maker XP, VX, VXA.