Cyberix3D - Free online 3D Game Maker. Make your own 3D games online!
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Castle Game Engine - An open-source 3D/2D game engine for ObjectPascal.
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
Unity - The multiplatform game creation tools for everyone.
Cinema 4D - Cinema 4D is a 3D modeling, animation, motion graphics and rendering application.