s&box is a modern game engine, built on Valve's Source 2
JavaScript-based game engine designed to empower developers
A re-implementation of Freelancer
3D game engine/framework in C, with Luajit and Python bindings now
This software is a particle effect editing tool
Behavior tree AI for Godot Engine
Full featured MUD server with all the trimmings.
A fun realistic multiplayer free-and-open-source first-person-shooter!
Cross-Platform Level Editor for Doom3 and The Dark Mod
Open-source full-stack web development framework built on top of React
An ASI plugin for Grand Theft Auto V
A Rust framework for building Minecraft servers
Open-source, cross-platform, game-development tools
Web powered cross-platform 3D, WebXR game engine
scriptable game engine with built-in support for 2D graphics and sound
The ultimate 2D side scrolling engine. NOTE: Moved to GitHUB
The Flixel Power Tools are a set of plug-ins for Flixel 2.5+
Simple Point & Click Game