You can hop into Warhammer: Vermintide 2 for free right now.
A free weekend is going on now until November 24. In a press release, CEO Martin Wahlund said,
“We are excited to bring Steam users the chance to play Vermintide 2. This will be a good opportunity to get into the battle and help the heroes fend off the Skaven and Chaos hordes.”
You’ll also be able to play all the DLCs if you’re invited by another player who owns the game and DLC. Additionally, a sale is going on, giving you a 75% discount if so desired.