Little is known about it other than the fact that its gate sits in the middle of a Martian ocean, constructed of blue crystals and giving off a mysterious glow. Its location is believed to be unknown to everyone except Harold Sun, as revealed in the Generic Quest Season One Finale.
Sun is currently located somewhere within the city.
- Arendor holds a secret that not even the Last Brigade knows. This will be revealed at some point in season two.
- The technical English translation of the word Arendor is "Rodnera," as Martian is read from left to right.
- The word Arendor in Martian means "City of Light."