A free/open source client and automation tool for Ragnarok Online
MCDaemon, a python tool to control your Minecraft server
Free game engine for development of desktop, mobile, and web games
Source code repository of the FreeOrion project
A permissions plugin for Minecraft servers
A completely free, open-source, 2D game engine
Open source library for N64 development
CTFs as you need them
Cross-platform 2D and 3D game engine with modular architecture
Dedicated Game Server Hosting and Scaling for Multiplayer Games
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Just another ComputerCraft fork
The Shiptest Codebase
A Minecraft Mod about Matter and Energy
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Stride (formerly Xenko), a free and open-source cross-platform C# game
Open source library for creative expression on the web, desktop, etc.
Self-hosted CMS platform based on the Laravel PHP Framework
A pure Go game engine
Cross-platform game engine in Rust
Zig game engine & graphics toolkit
A suite of tools to make running a AzerothCore server on Linux easier
Your collection, your way
A downloadable game for Windows, macOS, and Linux