This is a cooperative survival horror first-person shooter that plunges players into a desperate fight for survival across the ravaged landscapes of England. Following a catastrophic series of military cloning experiments gone awry, players are deployed as specialized military personnel tasked with a singular objective: eliminate the failed biological creations and survive the onslaught. The atmosphere is tense, focusing heavily on resource management, teamwork, and enduring increasingly difficult waves of mutated horrors.

Core Gameplay Experience and Mechanics

The central loop of this title revolves around wave-based survival. Teams of players must work together to defend designated safe zones against escalating hordes of grotesque creatures known as Specimens. Between waves, players have a brief respite to spend earned in-game currency on essential supplies, including weapons, ammunition, armor upgrades, and medical items from automated vendors.

Success hinges on strategic positioning and specialization. Players can choose from various distinct classes, each offering unique perks, proficiency bonuses with specific weapon types, and specialized skills that enhance team capabilities, such as healing, heavy firepower, or crowd control. Effective communication and coordinated use of these roles are crucial for managing the diverse threats encountered.

Survival and Progression Systems

The difficulty scales significantly as the match progresses, culminating in encounters with powerful "Patriarch" creatures that serve as the ultimate test of a team's endurance and preparation. Managing the limited inventory space and deciding whether to invest in immediate firepower or long-term defensive capabilities forms a key strategic layer of the experience.

Setting and Atmosphere

The game establishes a bleak, post-apocalyptic setting where civilization has collapsed under the weight of bio-engineered disaster. Environments range from claustrophobic urban interiors to more open, desolate countryside areas, all infested with the results of the failed experiments. The emphasis is placed on visceral, close-quarters combat against fast and resilient enemies.

What makes this game unique?

Its distinctiveness lies in the blend of intense, wave-based FPS action with a strong emphasis on cooperative class synergy and a persistent economy that rewards successful survival with better gear for the next round. The procedural nature of the enemy spawns, combined with the need to constantly re-equip and adapt loadouts, keeps the survival challenge fresh across multiple playthroughs.

Platform Availability and Content

This main game was originally released in 2009 and is available on PC (Microsoft Windows), Linux, and Mac platforms.

Additional Content Availability

The core game experience has been significantly expanded over time, featuring a substantial library of additional content, including 18 downloadable content packages available for players to explore.