In the first Killing Floor, the Zeds got makeovers for the event, with one set of skins for Halloween Horror and another for Hillbilly Horror.
- Halloween Horror 2011
- Hillbilly Horror 2012
- Hillbilly Horror 2013: Fright Yard
- Halloween Horror 2014: Double Feature
Killing Floor 2
- Halloween Horror 2017
- Halloween Horrors 2018: Monster Masquerade (October 2nd, 2018 - November 6th, 2018)