[PC] Free Weekend (Now for Next Six Days) - Killing Floor 2 (+50% off Steam Price: Now $14.99US) - Steam

For the next 6 days you can play Killing Floor 2 for free. This is a good opportunity to try it out and see if you like it before you commit to buy.
If you want to buy, it is 50% on Steam at the moment. However, please check other stores such as Humble, GOG, Gamersgate etc. to see if it is offered cheaper there. I have not done that check. I merely mentioned the 50% off deal for the sake of completeness because if I had not mentioned it I am sure the first comment would have been to include that.

Enjoy.