| Name | Size | Date | |
| CITYNAME.DAT | 14526 | 5/22/1988 | |
| IMP-MSG.DAT | 6225 | 3/3/1991 | |
| IMP-ONLN.DOC | 32930 | 5/9/1991 | |
| IMPCYCLE.EXE | 43488 | 5/5/1991 | |
| IMPERIUM.BAT | 61 | 3/6/1989 | |
| IMPERIUM.CFG | 11026 | 3/30/1991 | |
| IMPERIUM.EXE | 199534 | 5/6/1991 | |
| IMPERIUM.TIP | 22585 | 11/16/1990 | |
| IMPHIST.DAT | 9981 | 5/9/1991 | |
| IMPINIT.EXE | 72288 | 5/9/1991 | |
| IMPUTIL.EXE | 103120 | 5/6/1991 | |
| SYSOP.DOC | 60358 | 5/9/1991 | |
| UPDATE.EXE | 13600 | 2/28/1991 |