Flexible level editor
Voxel game-creation platform with easy modding and game creation
Endless Sky is a sandbox-style space exploration game
The source code to VVVVVV
Open Source MMORPG Framework
A modular Common Lisp game engine
Rcon client for Minecraft
An open source flight dynamics & control software library
fheroes2 is a recreation of Heroes of Might and Magic II game engine
Cross-platform 2D and 3D game engine with modular architecture
A unique Spigot/Paper plugin that looks and feels like a modpack
Lossless Scaling Frame Generation on Linux
A game engine with an emphasis on real-time cutting-edge solutions
Free game engine for development of desktop, mobile, and web games
Provides efficient allocation free async/await integration for Unity
A isometric city builder in JavaScript
Fast and lightweight JavaScript game engine built on WebGL and glTF
Open source simulation game based on Transport Tycoon Deluxe
Traditional roguelike game with pixel-art graphics
A 2D rigid body physics engine for the web
New Modpack with Gregtech, Thaumcraft and Witchery
Doom-based AI research platform for reinforcement learning
CTFs as you need them
A tech mod for Minecraft themed around the magic of nature
Godot game template and component-based framework