A lightweight online game framework
3D Game engine with editor
Discord bridging plugin for block game
Flax Engine, multi-platform 3D game engine
The Shiptest Codebase
Provides efficient allocation free async/await integration for Unity
3D Procedural Game Engine Using OpenGL
The ioquake3 community effort to continue supporting/developing id's
An open source implementation of the Ultima Online Classic Client
Self-hosted CMS platform based on the Laravel PHP Framework
Free, cross-platform 2D game engine powered by Haxe and OpenFL
dhewm 3 main repository
Frankenstein lived
Community effort to maintain and improve Jedi Academy (SP & MP)
Access GameLift resources and integrate GameLift into your Unity game
Free game engine for development of desktop, mobile, and web games
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
High performance UI layout library in C
You can make it - Open Source MMORPG Platform
2D JavaScript Physics Engine
A game framework written with osu! in mind.
Godot Kotlin JVM Module
A Flutter based game engine
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL