SDL based generic 2D game engine
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
A free transportation simulator game
Old-school 2D game engine
maXbox is a script tool engine, compiler and source lib all in one exe
Vivid3D is a C++ IDE/3D engine, with python scripting.
JavaScript-based game engine designed to empower developers
Unified Liminal World Editor, Procedural Engine & Game Creation Toolkit inspired by Radiant and Hammer. Optimised for low-power CPUs.
The Ultimate Automation Assistant
Full featured MUD server with all the trimmings.
Unified Data Envelopment Analysis commands for Stata
A fun realistic multiplayer free-and-open-source first-person-shooter!
PHP Backwards Compatibility Library (phpBCL).
A powerful, cross platform, SQL database system
Create and Publish Games to Sell in one Place
A cross-platform port of Hexen II game.
OgreWin3D
3D puzzle game based on Kula World and Cubosphere
GameServer is a sophisticated, game server designed for online games
PyCAPGE - Python Classic Adventure Point and Click Game Engine
The Free / Libre / Open Source Web App with the most built-in features
V1, Mirror Classic. V2, Mirror Engine: Join Discord for access