|Killing Floor 2 Tripwire Official map
|"Boozo the Clown" Masks (21)
There are 3 collectibles and 6 player spawns on every floor.
Nightmare is a Killing Floor 2 map. It was added in the game as a part of Halloween Horrors content pack. It is the second map to feature the "Holdout" sub-mode that puts players into the close quarters environment and forces them to stand the ground without escape routes.
Visiting the nightmares of anyone would be harrowing, but visiting the nightmares of a psychopathic clown named Boozo? That is the worst.