Tripwire Interactive’s zed-slaying co-op shooter Killing Floor 2 is running a new limited time event.

Cyber Revolt adds a new, cyberpunk-themed map with appropriately futuristic zombies to slaughter. The event also adds two new weapons (the Helios Rifle and Killerwatt), as well as tons of new cosmetics to unlock. The event will run until April 23rd.

You can check out more details here, and watch a trailer above. The launch of Cyber Revolt coincides with a free week on Steam. Until Monday, gamers can play the game for free, or take advantage of a 67% off discount.

Killing Floor 2 is available on Windows PC (via Steam), PS4, and Xbox One for $29.99.