Imperium is a 8 level episode for the DukePlus mod for DukeNukem 3D. People in the project, William Gee, Mrline, Maartn, Numan, KaiseR and Deeperthought.
The Imperium is an 8 level adventure for Duke Nukem 3D. Everything you need to play is included in the download, except of course for the DUKE3D.GRP file...