A multi core friendly rigid body physics and collision detection lib
A Flutter based game engine
Cross-Platform C++ 2D/3D game engine
Cross-platform 2D and 3D game engine with modular architecture
You can make it - Open Source MMORPG Platform
A real-time 3D Engine written in Ada
Game engine supporting many 3D/2D formats and graphic effects
Real-time collision detection and multi-physics simulation for VR
OpenGL port of the classic 6dof 3D shooter Descent
Example code for creating a 2D platform game in Java.
Multiplayer game server based on Node.JS
Dizzy Omega - sequel of Dizzy Y game
A public domain cross platform 3D game
a very lightweight advanced terrain-rendering and 3D map rendering sys
Mahasona engine is an open source game engine.
A generic 2D engine for any kind of game
A free ActionScript 3 library designed for developing 2D Flash games
Javascript hitTest on tranparent PNG with collision game sample
A retro style video game engine for RPGs and adventure games.