Dis

Dis is a location in Hell.

Doom/Ultiamte Doom
Dis is the final level of Inferno (third episode of Doom). E3M8: Dis

Doom (2016)/Doom Eternal
Erebus rules over the Spire City of Dis, as well as E2M8, the fallen Tower of Babel (E2M8: Tower of Babel (Doom)). Both appear to be located in or near the Umbral Plains.