TyrraVille is the only city on planet Tyrra, and thus its capital. All of the Tyrrans live here except for a couple of hermits who are now presumed dead thanks to the Super-Gro incident. Popular places to visit include Admiral Ux Square, Ux Field, Ux Park, and the Ux Science Center Building.
TyrraVille was temporarily succeeded by TyrraVille Two, located on planet Earth where the Tyrrans took refuge following the Super-Gro incident.