A re-implementation of Freelancer
Open source clone of the Age of Empires II engine
The game engine for everyone
An open source C++ game engine
3D game engine/framework in C, with Luajit and Python bindings now
Source code repository of the FreeOrion project
This software is a particle effect editing tool
Doom-based AI research platform for reinforcement learning
A rhythm game made with HaxeFlixel
OptiScaler bridges upscaling/frame gen across GPUs
Behavior tree AI for Godot Engine
Open Source Fan-Based EverQuest Emulator Server project
3D Procedural Game Engine Using OpenGL
Ct.js is a desktop game engine that makes learning programming fun
A free and open-source Touhou Project fangame
Lightweight, high-performance HTML renderer for game developers
RTSish Game Engine
An isometric arcade-style game of skill, puzzles and exploration
maXbox is a script tool engine, compiler and source lib all in one exe
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
Free and open source 3D creation software
An interactive 4D surface visualizer built with Qt 6.10.2 and Qt RHI
Full featured MUD server with all the trimmings.
PyCAPGE - Python Classic Adventure Point and Click Game Engine
GameServer is a sophisticated, game server designed for online games