A new Minecraft world editor and converter
Free game engine for development of desktop, mobile, and web games
N64 Game-Engine and Editor using libdragon & tiny3d
Open game and rendering engine packed into a JavaScript framework
Classic 2D side-scrolling platformer game
Flexible level editor
Command & Conquer: Remastered Collection
The source code to VVVVVV
3D Game engine with editor
Godot Minimal Theme
3D and 2D game engine written in Rust
An elegant Go board and SGF editor for a more civilized age
Ct.js is a desktop game engine that makes learning programming fun
Cross-platform 2D game engine focused on ultimate productivity
Make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons
Minecraft map editor and mod
The Tiny JavaScript Game Engine That Can!
Stride (formerly Xenko), a free and open-source cross-platform C# game
The flexible game engine
Fast and lightweight JavaScript game engine built on WebGL and glTF
A framework to build Pokémon RPG games
A permissions plugin for Minecraft servers
Cocos simplifies game creation and distribution with Cocos Creator
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
3D game engine with lua scripting