Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
3D Engine with Blender Integration
Cross-Platform C++ 2D/3D game engine
Fast and lightweight JavaScript game engine built on WebGL and glTF
Cocos simplifies game creation and distribution with Cocos Creator
A game engine powered by python and panda3d
A Minecraft mapping tool that creates 3D models of your Minecraft
LayaAir is an open-source 2D/3D engine
Blockbench - A low poly 3D model editor
3D game engine with lua scripting
Free game engine for development of desktop, mobile, and web games
A J2ME emulator for Android
Cross-platform 2D and 3D game engine with modular architecture
Flax Engine, multi-platform 3D game engine
A modular Common Lisp game engine
Open game and rendering engine packed into a JavaScript framework
3D Procedural Game Engine Using OpenGL
Map Pixel Art Generator for Minecraft
Voxel game engine in C++ with OpenGL
3D game engine/framework in C, with Luajit and Python bindings now
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
3D and 2D game engine written in Rust
Simple and light-weight 3D game engine
3D Game engine with editor
Java/JavaFX/Kotlin Game Library (Engine)