Killing Floor 3is all about the fast-paced, action-fueled, zed-slaying gameplay—but that doesn’t mean you may’t enjoy a story while you’re at it. The game boasts a number of missions that come together to make a short campaign mode.

Those familiar with the lore may recognize the name of the classic bioweapons manufacturer Horzine, who made the zeds you fight. Think of it as Killing Floor’s Umbrella Corporation, and you’re close enough.

An Impaler, a large, bulky zed with a blade as a horn in the center of its forehead.

The lore evolves throughout 10 short assignments, each asking you to interact with objects during your runs in the game’s maps. Here’s the full list of missions forKilling Floor 3.

Killing Floor 3 mission list

Each mission tasks you with a handful of objectives, giving a bit of extra purpose to each sortie. While a research lab seems like a staple choice for a map in a zombie game, you’ll actually use its devices to uncover new zed technology in an attempt to stop the experiments made by a rogue group of Horzine scientists driven by fame, faith, or fear. We’ve written a simplified, spoiler-free version of the story below.

What’s Killing Floor 3’s story about?

The newest title follows the story from its predecessors, though with a considerable timeskip in between.Killing Floor 3is set in 2091, after Cordelia Clamely—staunch anti-bioweapons activist and granddaughter to Horzine co-founder Kevin Clamely—establishes a response team called Nightfall to stand up against the rogue company.

In the new title, the Nightfall special ops team find evidence of a potentially devastating type of biotechnology. Now, they must track the people making these new experiments or risk even deadlier consequences. Cordelia is your handler throughout the missions, giving you valuable intel in each assignment (when she’s not waiting for you to finish a wave, that is).

A Scrake commands a swarm of zeds in Killing Floor 3.

Off the bat, the game mentions three Horizon staff members by surname in the Codex: Moorcroft, Hobbes, and Medford. They appear throughout the campaign in some form, and they’re all embroiled in the plot.

Dr. Moorcroft isKilling Floor 3‘s bona fide mad scientist, the founder of the R&D Red division, who is developing new zeds with the use of a substance called the Mire. Edgar Hobbes is a vehement zealot, trusting the doctor above anything. Pam Medford, on the other hand, is the only reluctant one of those three. Each plays a role in the story, and the Nightfall team will try their best to stop this new threat.

Intrigue. Image via Tripwire Interactive

The opening area of the Whisper mission, in a small grove.

The Divide in the Cosmodrome, where the Guardian was resurrected.

A holofoil Ribbontail, as seen in collections.

The Phoneutria Fera hand cannon, inspired by the Season of the Haunted armor set. It has a unique, galactic glow.

Three Fuses appear in a match of Apex Legends' Wild Card mode.

Mad Maggie opens a supply bin and an item with a symbol indicating infinite ammo appears.

Legends slide through a zipline in King’s Canyon in Apex Legends.