Vulkan-based implementation of D3D9, D3D10 and D3D11 for Linux / Wine
aka ogre v2 - scene-oriented, flexible 3D C++ engine
FlightGear Flight Simulator: free open-source multiplatform flight sim
3D Engine c++
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
Vivid3D is a C++ IDE/3D engine, with python scripting.
LDraw™ editor for LEGO® style digital building instructions.
High-efficiency minimalist C++ wrapper for OpenGL 4.3
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++.
Lightweight and modular C++11 graphics middleware for data and games
A real time global illumination solution that achieves glossy surfaces
Famous card game with 3D graphics and artificial intelligence