3D Engine with Blender Integration
Java/JavaFX/Kotlin Game Library (Engine)
Lightweight, high-performance HTML renderer for game developers
Vivid is a modern C++ 3D engine using OpenGL4+
Cross-platform 2D and 3D game engine
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
Realtime 3D engine for game development
3D .NET engine for Windows, Linux, Mac
A public domain cross platform 3D game
A world editor for HGE game engine written in python and uses OpenGL.
A cross-platform game framework based on OpenGL and GObject.
3D game engine for C and C++
Pear3DEngine is a modern and modular 3D development framework