Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
LayaAir is an open-source 2D/3D engine
Fast and lightweight JavaScript game engine built on WebGL and glTF
Cross-Platform C++ 2D/3D game engine
Cocos simplifies game creation and distribution with Cocos Creator
A Minecraft mapping tool that creates 3D models of your Minecraft
A game engine powered by python and panda3d
Free game engine for development of desktop, mobile, and web games
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Voxel game engine in C++ with OpenGL
A modular Common Lisp game engine
Cross-platform 2D and 3D game engine with modular architecture
Map Pixel Art Generator for Minecraft
UZDoom is a feature centric port for all Doom engine games
3D Game engine with editor
One framework for creating powerful cross-platform games
3D game engine/framework in C, with Luajit and Python bindings now
3D and 2D game engine written in Rust
A isometric city builder in JavaScript
DeSmuME is a Nintendo DS emulator
An iOS & tvOS Frontend for Multiple Emulators
3D Procedural Game Engine Using OpenGL
3D space trading and combat game
Java/JavaFX/Kotlin Game Library (Engine)
Desktop/Android/HTML5/iOS Java game development framework