Endless Horde casts its tower-defense struggle as a final defense of a threatened facility. Undead attackers are after the scientists, and survival depends on assembling a defense rather than simply meeting enemies in open combat. The premise gives each run a clear objective: hold the perimeter for as long as possible while the horde keeps coming.
Players position units, place guards, close doors, and set traps to shape the defense. The traps offer different ways to handle the undead, including explosions, fire, and freezing, while leveling up unlocks additional units and upgrades. The defining wrinkle is that enemy spawn locations are randomized from wave to wave. Familiar plans may need adjustment, so the tactical challenge comes from responding to a changing assault rather than relying on one fixed arrangement.
The listed format is single-player, making Endless Horde a solo survival defense rather than a co-op session. Steam leaderboards add an online competitive layer for survivors comparing their results, alongside Steam achievements.
