Avalon

Avalon was a fictional civilization that existed in the fifth-century.

Background
Created by Astoundingly Awesome Tales, Avalon serves as the setting of the board game Scribe of Avalon. In the game, protagonist time-traveler K.D. Inkwell must locate Cynnoc, "known to history" as the Scribe of Avalon. Along the way, she can be assisted by Alistair, a "legendary Knight of Avalon."

According to gameboard art, Avalon has highly advanced technology and consists of skyscrapers resembling medieval towers, and its inhabitants have to deal with hostile barbarian hordes.

Appearances
Avalon only appears in the Scribe of Avalon board game which served as the playable area for third season in Fallout 76, running alongside the Steel Dawn update.

Behind the scenes
Avalon is the legendary island featured in the myth of King Arthur where his famous sword Excalibur was forged and where he was taken to recover after being wounded in battle.