scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Amateur 3D Game Engine
Vivid is a modern C++ 3D engine using OpenGL4+
Cross-platform 3D scene editor based on three.js, golang and mongodb
A 3D game engine in java.
An advanced flexible game engine for Java.
Mahasona engine is an open source game engine.
Visual Novel engine, editor and game development.
A simple 3D game engine
Advanced 2D/3D(CPU,GPU) Game Engine Library