Top Alternatives to Alien Swarm

Doom is a pioneering first-person shooter franchise renowned for its fast-paced combat, visceral action, and iconic blend of science fiction and horror themes, pitting a lone marine against hordes of demonic invaders.

Killing Floor is a heart-pounding cooperative first-person shooter that plunges players into the midst of horrific Zed outbreaks across various maps. Team up with friends to survive waves of monstrous creatures, strategically utilizing a diverse arsenal of weapons and a unique perk system to defend against the relentless onslaught.

Dead Space is a critically acclaimed survival horror video game series known for its intense atmosphere, grotesque creature design, and visceral combat. Players take on the role of Isaac Clarke, an engineer struggling to survive a horrific outbreak on a deep-space mining vessel.

Killing Floor is a visceral co-op survival horror first-person shooter where a science experiment gone wrong unleashes hordes of horrific creatures across England. Players must work together to survive waves of increasingly deadly Zeds, utilizing a diverse arsenal and a unique perk system to push back the mutated invasion in this high-octane, blood-soaked struggle for survival.