Killing Floor 2 is free to play on Steam this weekend, and 33% off
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Killing Floor 2 can be played for free this weekend on Steam and it's also on sale.
If you decide you like the shooter, you can purchase it for 33% off.
This means you will pay $20.09 for the Early Access title instead of the regular $29.99.
The sale and the free weekend ends on December 14 when Steam updates.