Undead Walking 3D

Undead Walking 3D is a first-person zombie survival shooter with a proper campaign shape to it. Thirteen levels take you through a zombie apocalypse in distinctly different places — dead cities, flooded sewers and a swarming airport among them — and each zone ends with a boss, so progress is gated on beating something specific rather than on surviving a timer. The bow is your starting weapon and more powerful ones unlock as you advance, with headshots rewarded as the efficient way to deal with a horde. The tension comes from a deliberate scarcity: ammunition is limited while the undead are not, so every shot you take is a decision rather than a reflex.