Open source library for N64 development
Real Time Strategy game engine supporting early Westwood classics
Gideros Release version
Arianne is an engine to develop multiplayer online games like Stendhal
SDL based generic 2D game engine
lua dev plugin for unreal engine 4 or 5
Game engine supporting many 3D/2D formats and graphic effects
INSTEAD - Simple Text Adventure Interpreter.
Orx: Data-Driven Game Engine
Old-school 2D game engine
utility collection for 2D game development in Java; sound-player
JavaScript framework to build game engines, games, emulators and apps
Java Settlers
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
Quake PAK file utility
A cross platform Lua based game engine
8-bit Graphical API for Java
Source code of the chapters of the book 3D Game Development with LWJGL
Multidocument automation by templates - for sphinx, mkdocs, epydoc ...
A complete web framework to create online Fighting Fantasy adventures
Portable game engine with main focus on point-and-click adventures
X3D Prototypes for the SMUOS Component