Zombie Night Terror casts the player as the intelligence behind a spreading zombie outbreak, turning the familiar survival-horror premise around: the undead are your forces, and humanity is the opposition. The zombies move forward with little judgment, so success depends on guiding them past traps and toward survivors rather than simply unleashing a horde. Its campaign is described as spanning fifty levels, with puzzles and increasingly formidable human resistance shaping the push toward world extinction.
The strategy comes from directing the horde and adapting it through mutations. Different zombie types bring distinct abilities, and those mutations can be combined to meet enemy defenses. The humans are more than targets: they fight back, while biting can convert them into recruits. Destructible environments add another way to deal with hiding places, making the outbreak itself a tool. Alongside its authored levels, the game includes a level editor and Steam Workshop support for creating and sharing custom stages.
The store categorizes Zombie Night Terror as single-player, so its central format is a solo campaign of puzzle-solving and tactical horde management, not a multiplayer contest. The appeal is in planning how a limited-minded army can overwhelm armed survivors, then reshaping that army when one approach is not enough.