3D Engine with Blender Integration
aka ogre v2 - scene-oriented, flexible 3D C++ engine
Java/JavaFX/Kotlin Game Library (Engine)
3D Engine c++
A real-time 3D Engine written in Ada
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
realistic driving simulation + functions for 2D/3D graphics
Viewer and exporter for Unreal Engine 1-4 assets
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++.
3D .NET engine for Windows, Linux, Mac
A public domain cross platform 3D game
Design and Display Happy Cube solutions