Game engine supporting many 3D/2D formats and graphic effects
lua dev plugin for unreal engine 4 or 5
Orx: Portable Game Engine
Arianne is an engine to develop multiplayer online games like Stendhal
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
Old-school 2D game engine
The imaginary eight-bit machine
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
Portable game engine with main focus on point-and-click adventures
Build Cross-platform Applications
Event driven concurrent framework for Python
3D .NET engine for Windows, Linux, Mac
Flexible and easy-to-use 2d game engine
A game engine written in the D programming language
An advanced flexible game engine for Java.
evolution for vegastrike SpaceSim/Combat/Trade game
Java decentralized cross-platform network multiplayer game engine
Free strategy browsergame engine.
Multimedia asset management and manipulator for Étoilé
A 2D Adventure Game & Engine