Dying Light - Dying Light is an Action-Adventure, First-person Perspective, Horror-Survival, Zombie, Co-op, Role-playing, Single and Multiplayer video game created by Techland and published by Warner Bros.
Unity - The multiplatform game creation tools for everyone.
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.
Godot Engine - Feature-packed 2D and 3D open source game engine.
DayZ - DayZ is an open world multiplayer survival game that tosses you in the midst of a zombie apocalypse.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.