7 Days to Die is a 3D open-world survival game filled with zombies. The game takes place after the damage of a nuclear-driven World War 3. In 7 Days to Die, the player must scavenge for food and supplies in a zombie-filled world. Building in the game is voxel-based (similar to Minecraft) with the ability to craft items and build bases or shelters. It helps to fortify your shelter to give yourself a better chance of surviving the roaming zombie hordes that occur during nighttime.