Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Dead Frontier - Dead Frontier is among the few zombie based video games that you can obtain in your web browser and for free.
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
DayZ - DayZ is an open world multiplayer survival game that tosses you in the midst of a zombie apocalypse.
ZBrush - ZBrush is a digital sculpting and painting software solution.
7 Days to Die - 7 Days to Die is a post-apocalyptic survival game, during which players must craft shelters and horde resources in order to survive waves of undead enemies. Read more about 7 Days to Die.