The Darkside Universe is one of the five universes in the Boonieverse.
For a long time, the Darkside Universe was known as the Urban Universe. Its main planet was Coruscant. However, during a war between the Urban Tribe and the Cave Tribe (which had corrupted into the Darkside Tribe), the main planet of the Darkside Universe was heavily damaged, resulting in the destruction of all civilization on Coruscant. As a punishment, the Darkside Tribe was forced to switch universes with the Urban Tribe.