Warhammer: Vermintide 2 is currently on a time-limited deal where you can grab a copy and keep it, so act fast if you want a free game. Earlier this year it also had an update to improve the anti-cheat on Linux too, so hopefully now you won't have too much trouble running it on Linux systems with Proton.
More about it: "Warhammer: Vermintide 2 is a 4-player co-op action game set in the Warhammer Fantasy Battles world. Sequel to the critically acclaimed Vermintide, Vermintide 2 is the latest installment in a franchise best known for its intense and bloody first-person melee combat."
It also only just this week added a new free DLC with Warhammer: Vermintide 2 - Return to the Reik, which adds in one of Vermintide 1’s most popular levels.
Direct Link
It's free to claim and keep on Steam until November 24th.




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