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• Cooperative gameplay for up to six players against multiple waves of specimens
  
• Persistent Perks system, allowing players to convert their in-game achievements into permanent improvements to their character's skills and abilities
  
• Over 170 Steam Achievements, including “Dignity for the dead” for killing 10 enemies feeding on dead teammates' corpses and “Hot Cross Fun” for finishing off 25 burning enemies with a Crossbow
  
• Slow-motion “ZEDtime” to better watch those crucial and violent creature deaths, even in multiplayer
  
• Solo game mode for offline play
  
• Ten different monster types trying to eat your face off, armed with everything from teeth and claws, to chainsaws, chain-guns and rocket-launchers
  
• 33+ weapons for the players to chose from, ranging from knives and fire-axes to pump shotguns, rifles and a flamethrower
  
• Equip your team with welders, medical tools and body armor to help your odds of survival
  
• Choose which Perks to play with to best balance out your co-op team against the horrors
  
• Open, non-linear play areas: choose when and where to fight — or run; weld doors closed to direct the monster horde down alternate corridors
  
• Fully-configurable, allowing players to change the difficulty level, number of creature waves, or even set up their own favorite waves of monsters
  
• Support for Steam Friends and other Steamworks features
  
• Includes Windows-only SDK for the creation of new levels and mods
  

Descripción del contenido para adultos

Los desarrolladores describen su contenido así:

Este juego puede incluir contenido no apto para todas las edades o para verlo en el trabajo: Violencia frecuente o gore, Contenido general para adultos