Killing Floor is co-op survival horror game. Up to 6 players in online co-op mode, or just you, on your own, playing the Solo mode. The aim – cleanse each area of zombies, in waves, until you get to the last one. The Big One. The Patriarch. Then exterminate him, too. Actually, they aren’t “zombies”. They are the left-over “specimens” from a cheap and dirty government program to clone soldier-monsters. The basic ones will just munch on your arm and try to disembowel you. The bigger ones were the first ones they tried arming. Nothing much. Just a chainsaw or a blade for starters. They had just got on to the chain gun and rockets when the government tried to secretly shut down their secret program.

But, in the typical way these things go, the program didn’t want to be shut down. The specimens got loose. No-one was left alive to turn off the specimen-cloning equipment. And now they are running amok. Well, some of them are running amok. Others are shambling amok or even jumping amok, but you get the idea.

The police were sent in, but that wasn’t even a challenge for the specimens. The first army units hadn’t been warned what to expect. The screams of “its got a bloody chainsaw!” over the radios probably didn’t do much for morale, as whole units were chewed up. Quite literally, in some cases, of course.

The Free Weekend will run from Thursday 22nd through Sunday 25th October and will allow anyone to play the full game, including all the additional free content, all weekend. This includes the latest “Level Up” content pack and the Defence Alliance mod, both being released on Thursday. It also includes a 25% discount on buying Killing Floor over Steam for the duration of the weekend.

Tripwire have already released one free content pack for the game, plus one DLC character pack. We are releasing the latest free pack, plus another DLC character pack in time for the free weekend, so that everyone can try it all out.

The full game will now include:

• Co-op game mode for up to six players obliterating 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 60 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.
• Watch those crucial and violent creature deaths in slomo “ZEDtime”, even in multiplayer
• Solo game mode for offline play
• 10 different monster types trying to eat your face off, armed with everything from teeth and claws, through to chainsaws, chainguns and rocket-launchers
• Over 20 weapons for the players to chose from, ranging from knives and fire-axes up to pump shotguns, rifles and a flamethrower. Add in a welder, medical tools and body armor to help the players survive
• 9 official maps included and more than 100 custom maps created to date!
• 14 player characters to chose from (including additional DLC characters available)
• Players choose one of 7 Perks to play with, so they can best balance out a co-op team to survive the horrors
• Open, non-linear play areas: choose when and where to fight – or run; weld doors closed to try and direct the monster horde
• Fully-configurable, allowing players to change things as simple as the difficulty level or number of creature waves, or go so far as to set up their own favorite waves of monsters
• Includes SDK for the creation of new levels and mods

Key features:

• Co-op game mode for up to six players obliterating multiple waves of specimens
• Solo game mode for offline play
• Watch those crucial and violent creature deaths in slomo “ZEDtime”, even in multiplayer
• 9 different monster types trying to eat your face off, armed with everything from teeth and claws, through to chainsaws, chainguns and rocket-launchers
• 12+ weapons for the players to chose from, ranging from knives and fire-axes up to pump shotguns, rifles and a flamethrower
• Add in a welder, medical tools and body armor to help the players survive
• Persistent Perks system, allowing players to convert their in-game achievements into permanent improvements to their character’s skills and abilities
• Players choose which Perks to play with, so they can best balance out a co-op team to survive the horrors
• Open, non-linear play areas: choose when and where to fight – or run; weld doors closed to try and direct the monster horde
• Full support for Steamworks features, including Steam Achievements and Friends
• Fully-configurable, allowing players to change things as simple as the difficulty level or number of creature waves, or go so far as to set up their own favorite waves of monsters
• Includes SDK for the creation of new levels and mods

Killing Floor is currently available for digital download through Steam for $19.99.