aka ogre v2 - scene-oriented, flexible 3D C++ engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Animation engine for explanatory math videos
Simple and light-weight 3D game engine
Makes it simple to draw stuff across platforms (including web)
A modular Common Lisp game engine
An OpenGL RTS game engine written in C
crossplatform multithreaded object-oriented render and audio engine
C# graphics library used for 3D modeling, built with OpenGL/OpenTK
Game engine supporting many 3D/2D formats and graphic effects
LDraw™ editor for LEGO® style digital building instructions.
High performance C++ library for building Wayland compositors
Vivid3D is an open-source 3D engine with powerful 2D UI.
Portable suite of libraries and tools for building client applications
Vivid is a modern C++ 3D engine using OpenGL4+
photo3D_chung seashore3D_chung galaxy_chung dive3D_chung
Go 3D Game Engine
A modern yet simple multi-platform video cutter and joiner
Modern 3D engine and IDE written using C# and C++.
an osm openstreetmap 3D / bing maps car / flight / ballon sim game
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
Source code of the chapters of the book 3D Game Development with LWJGL