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
The flexible game engine
Pokémon Save File Editor
Godot Minimal Theme
The source code to VVVVVV
Classic 2D side-scrolling platformer game
Command & Conquer: Remastered Collection
3D and 2D game engine written in Rust
Flexible level editor
3D Game engine with editor
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
V1, Mirror Classic. V2, Mirror Engine: Join Discord for access
Ct.js is a desktop game engine that makes learning programming fun
Jazz² Resurrection: Open-source reimplementation of Jazz Jackrabbit 2
DeSmuME is a Nintendo DS emulator
Cross-platform 2D game engine focused on ultimate productivity
Stride (formerly Xenko), a free and open-source cross-platform C# game
Real Time Strategy game engine supporting early Westwood classics
Fast and lightweight JavaScript game engine built on WebGL and glTF
A framework to build Pokémon RPG games
The Tiny JavaScript Game Engine That Can!
A permissions plugin for Minecraft servers