Fort Kickass is a cardboard box fort built by Dr Krieger in the episode Skorpio. It was erected in the ISIS mainframe out of cardboard boxes, but instead of moving data to new servers as they were assigned to, Pam, Krieger, Cheryl and Cyril used it to goof off and get drunk. In particular, Krieger serves cell phone cocktails and snorts MSG off of Pam's stomach, while Cheryl talks to Cyril about Lana and Archer sleeping together on Spirodon Skorpio's yacht, which leads to Cyril and Cheryl having sex in Malory Archer's office. The fort was presumably destroyed when Krieger set fire to the mainframe.

However, remnants of Fort Kickass were seen in the Season 4 episode Viscous Coupling when Lana and Malory were locked in the vault.