If you'd like to kill many, many zombies, there are few better ways to do that than by playing Killing Floor 2, which remains one of our favorite wave shooters. Good news, then: we have 20 Steam keys for the full game to give away.

All you have to do is fill out this form to enter.

Note that we won't see your email address, and Godankey won't keep it. It'll only be used to send 20 randomly-selected winners their Steam keys, which will be distributed at the end of today, November 9.

The opt-in beta for Killing Floor 2's Twisted Christmas: Season's Beatings event is underway, and when it fully launches it'll add two new maps and four new weapons, among other things—including a new purchasable DLC character voiced by Gary Busey. You can find the details on that, as well as how to opt into the beta, here.

If you're a PC Gamer Club member, head to the Discord server's #giveaways channel for a few more opportunities to snag a key. Good luck! 

Gary Busey did a turn a couple of years ago as an Elusive Target in Hitman, and apparently he was elusive indeed, because soon he'll take center stage in Killing Floor 2's Twisted Christmas: Season's Beatings update as—brace yourselves—Badass Santa. 

Badass Santa isn't a boss, but a new purchasable, playable character voiced by Busey. Separately, Busey will deliver advice on weapon and gear purchases at the Free Trader station as a unique voice for the Trader. There will be a few new weapons under that tree, too: a new Thompson SMG, a Krampus battle axe, an M32 grenade launcher, and the Fire Axe, a seasonal favorite for Berserkers. 

The update will also include a couple of festive new maps, Santa's Workshop and Shopping Spree, the return of Christmas-themed Zeds, and for owners of Road Redemption, the return of the Road Redeemer weapon for the Berserker class.   

The Killing Floor 2 – Twisted Christmas: Season's Beatings update will go live in early December, and will be free for all owners of the game. Busey's Badass Santa will also be available for purchase as a playable character. 

Developer Tripwire Interactive also announced that Killing Floor 2 has sold more than three million copies since its release in November 2016—not really related to the holiday update, but still an impressive milestone to move past, and a nice way to kick off the season.

Update: Tripwire clarified that the Badass Santa playable character will go for $10, but will not be available for purchase during the Twisted Christmas: Season's Beatings beta, which is set to go live later today. The Gary Busey-voiced trader will be live in the beta, however.