Killing Floor

How many have tried this zombie co-op game by Tripware?

It's very similar to L4d but i like this one more. Unlike L4d this feels actually kind of scary in places. There is also lot more gore, which i love <3 Actually I think it's the most gore game I have played. No story bullshit here either. Only bad point I can think of is a little bit too long level load times since you are going to be restarting a lot :)