A cooperative survival horror experience set in a variety of nightmarish and surreal settings. Band together with your team-mates to defeat increasingly overwhelming hordes of freakish enemies and eventually - a horrifying boss.
For some reason I keep coming back to Killing Floor after a few years. There are great pockets of community to be found that are very fun to play with. If you like killing things with other people this game is great. Check out non whitelisted servers 20+ people to find some really fun cool mods.
Great game, very mod-able, but it has it's issues like any true game does. Perhaps I don't get the full experience though, playing on a mid-low end computer, but even so. Amazing game though, and the amassment of difficulties makes it easy for anyone to pick up.
My only criticism is that it needs a sniper rifle (rather than just a crossbow and 2 rifles).. and perhaps it could use different bosses (depending on the map) and some more maps.
I would say the game does what it does well eventhough there isn't any campaign, or much replayability here, it does what it does well and thats co-op survival horror zombie killing.
My all time favorite fps zombie game. It's fun with friends, with strangers, and for a while alone on solo. I don't need the perk system to keep playing but its a fun addon. The fact that theres updates like the summer event keeps the community going and shows care.