Desktop/Android/HTML5/iOS Java game development framework
Open Source MMORPG Framework
lua dev plugin for unreal engine 4 or 5
An isometric arcade-style game of skill, puzzles and exploration
TX Library is a tiny graphics library for Win32 written in C++.
Game/Scene Development System
OgreWin3D
Vivid3D is a C++ IDE/3D engine, with python scripting.
High-efficiency minimalist C++ wrapper for OpenGL 4.3
Orx: Portable Game Engine
A free 3D game engine to create games and realtimes scenes for Windows
Utility for viewing ZX Spectrum emulator snapshot files.
Updated emulator of Forgotten Realms: Unlimited Adventures
Small lightweight program to customize your keyboard
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
Quake PAK file utility
mGSTEP port of the Cube game engine
A cross platform Lua based game engine
A real-time game development platform
A 2D game engine and level editor
Cross-platform 2D and 3D game engine
A distributed graph deep learning framework.
Free and Open Game Programming Language for Windows and GNU/Linux