It’s been nearly seven years since Killing Floor 2 was released, bringing Horzine Biotech’s Zeds to a more single-player friendly format following the 6-player co-op experience of the first game.

The year is 2091, 70 years after the events in Killing Floor 2, and megacorp Horzine has produced the ultimate army: an obedient horde of bio-engineered monstrosities called Zeds. Now, the only ...