Contagion frames its zombie apocalypse as a survival horror experience built around unpredictable rounds. Its built-in randomization changes the game or round each time you play, giving repeat sessions a shifting structure rather than a fixed sequence. The undead are traditional slow movers, but the description stresses that they take a bullet to the brain or enough damage to stop functioning, making survival a matter of confronting threats directly.
The game offers modes built around escaping, extracting civilians, or hunting other players, with co-op and survival skills emphasized. Its equipment selection spans firearms, melee weapons, explosives, support items, and tools, while its gore effects and ambient sound contribute to a dark, visceral atmosphere. The listed formats include single-player, online co-op, and online PvP, placing both cooperative survival and player-versus-player encounters within the game’s design.
Its changing rounds and varied objectives provide context for why interest may differ between players seeking cooperative survival and those drawn to hunting each other.