As the robots leave the seastead, K-VRC says, "So long, Elena! And thanks for all the fish!" This is a direct reference to "The Hitchhiker's Guide to the Galaxy" by Douglas Adams.
Features the return of the 3 robots from Season 1 episode 2, continuing their post apocalypse world tour.
The architecture of the refurbished oil rig has some details reminiscent of the first two Bioshock games.
The overall esthetic of the environments in this episode are inspired by the Fallout video game series.
Seastead is an only mildly fictionalized version of The Principality of Sealand, a micronation on HM Fort Roughs (also known as Roughs Tower), an offshore platform in the North Sea approximately twelve kilometres (6.5 nautical miles) off the coast of Suffolk, England.