| Name | Size | Date | |
| CITYNAME.DAT | 14526 | 5/22/1988 | |
| IMP-MSG.DAT | 6225 | 3/3/1991 | |
| IMP-ONLN.DOC | 38200 | 2/10/1992 | |
| IMPCYCLE.EXE | 46592 | 3/7/1992 | |
| IMPERIUM.BAT | 61 | 3/6/1989 | |
| IMPERIUM.CFG | 12175 | 3/7/1992 | |
| IMPERIUM.EXE | 239910 | 3/7/1992 | |
| IMPERIUM.TIP | 22585 | 11/16/1990 | |
| IMPHIST.DAT | 11409 | 2/10/1992 | |
| IMPINIT.EXE | 76800 | 3/7/1992 | |
| IMPRANK.EXE | 16736 | 3/7/1992 | |
| IMPUTIL.EXE | 115520 | 3/7/1992 | |
| SYSOP.DOC | 57829 | 1/15/1992 | |
| UPDATE.EXE | 27760 | 1/15/1992 |