Killing Floor is a Co-op Survival Horror FPS set in the devastated cities and countryside of England after a series of cloning experiments for the military goes horribly wrong. You and your friends are members of the military dropped into these locations with a simple mission: Survive long enough to cleanse the area of the failed experiments!

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

System Requirements:
OS: Windows XP/Vista
Processor: 1.2 GHZ or Equivalent
Memory: 1 GB RAM
Graphics: 64 MB DX9 Compliant
Hard Drive: 2 GB free hard drive space
Sound: DX 8.1 Compatible Audio

System Recommended:
OS: Windows XP/Vista
Processor: 2.4 GHZ or Equivalent
Memory: 2 GB RAM
Graphics: 128 MB DX9 Compliant with PS 2.0 support
Hard Drive: 2 GB free hard drive space
Sound: Eax Compatible

Delivery
Your activation key will be sent directly to the email address associated with your purchase within 24 hours after payment is confirmed. Deliveries are generally completed in less than an hour, but may take longer depending on the time of purchase. Once you receive your key, your game can be activated on Steam in any region.

Verification Notice
In order to combat fraud and unauthorized purchases, We have a fraud prevention policy where we may ask buyers to verify their address before delivery. This process may be used if your PayPal status is unverified or your address is unconfirmed. If required, items will be shipped immediately after confirmation. If confirmation can't be completed, however, the purchase will be refunded in full and no items will be delivered.

Refunds and Returns Policy
Please note, that all digital codes (keys) and links (gifts) are unique items that can only be used once, that is why they are NOT a subject of a refund or return. If you wish to cancel your paypal order before your order has been sent, please contact us immediately and we will refund you in full without delay.

We guarantee that all our keys and gifts are 100% valid. However, if you happen to have any difficulties while activating them, please contact us and together we will solve your problems as soon as possible. We can take back the item you bought from us solely when it is still not redeemed and if are able to resell it. We can give you your money back only after we receive a confirmation from another customer.