Blender - Blender is the open source, cross platform suite of tools for 3D creation.
microStudio - microStudio is an all-in-one online game engine that enables you to create games, develop programming skills, have fun playing what you have created, share with others, and prototype.
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.
ENIGMA – LateralGM - LateralGM is a powerful IDE for ENIGMA, and both of these combine to offer you a cross-platform game environment.