Undead Invasion

A zombie shooter built around scarcity. Ammunition is limited and resupply is infrequent, the enemies are numerous and slow, and the intended solution is to make every shot count rather than to fight through with volume — which turns a genre usually about reflexes into one about discipline. The slow enemies are what make that work. Because they advance predictably, there is time to position, to line up a shot that passes through two of them, and to retreat to a better angle rather than firing from wherever you are standing. The danger is being surrounded, which happens gradually and visibly, so a death is almost always the result of several poor decisions rather than one missed shot. There is a progression of stages with escalating numbers and occasional faster enemies to break the pattern, and equipment that changes the ammunition economy rather than simply adding damage. Stages take a few minutes. It needs a mouse to aim properly, runs on modest hardware, and is a more deliberate shooter than the genre's reputation suggests. The stages also escalate in a way that keeps the discipline relevant: more enemies rather than tougher ones, which means the ammunition pressure rises rather than the damage requirement. A build that solved an earlier stage still has to be rationed.