The Nebula Device
A free open source 3D game and visualization engine. The license is similar to the zlib license.
A free open source (LGPL) graphics engine.
Free open source (zlib) 3D graphics engine.
Free (LGPL) 3D graphics engine.
Commercial game development suite. Complete with 3D graphics, physics, sound, scripting (AngelScript), ai, and networking. It also comes with editors, so it is not just an engine.
Low priced professional Game Engine.
Free open source 3D engine. The license is similar to the zlib license.
Free 3D engine.