Gameplay is really very simple; all you need to do is move your character through the different scenes, shooting all the zombies you see in front of you and trying to keep them from getting a taste of your intestines.
Luckily, you'll have some help along the way. You can count on a huge arsenal full of shotguns, machine guns, turret guns, and pistols, along with plenty of defensive equipment to save you from a deadly bite. There are also different items that you can use to furnish your home base.
Graphically, Zombie HQ stands out, with character models and a general design that fit in perfectly with the overall tone of the game.
Zombie HQ is a good zombie-killing game that should keep you entertained for hours thanks to a variety of missions and the large amount of objects that you can collect.