Open source library for N64 development
Real Time Strategy game engine supporting early Westwood classics
Fast and lightweight JavaScript game engine built on WebGL and glTF
Desktop/Android/HTML5/iOS Java game development framework
Open source library for creative expression on the web, desktop, etc.
One framework for creating powerful cross-platform games
Gideros Release version
Game engine supporting many 3D/2D formats and graphic effects
SDL based generic 2D game engine
Old-school 2D game engine
Orx: Portable Game Engine
PyCAPGE - Python Classic Adventure Point and Click Game Engine
TX Library is a tiny graphics library for Win32 written in C++.
A free 3D game engine to create games and realtimes scenes for Windows
Vivid3D is an open-source 3D engine with powerful 2D UI.
2D Game Engine
Modern 3D engine and IDE written using C# and C++.
A cross platform Lua based game engine
A 2D game engine and level editor
Cross-platform 2D and 3D game engine
Free and Open Game Programming Language for Windows and GNU/Linux
Example code for creating a 2D platform game in Java.