Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Cyberix3D - Free online 3D Game Maker. Make your own 3D games online!
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
Godot Engine - Feature-packed 2D and 3D open source game engine.
ZBrush - ZBrush is a digital sculpting and painting software solution.
Open 3D Engine - Open 3D Engine is an open-source 3D game development engine in real-time.