25 wads
| File | Name | Author | Iwad | Demos | Length |
|---|---|---|---|---|---|
| immortal | Immortal | Richard J. Sham | doom2 | 2 | 7:29 |
| imp1 | imp1 | Jon Davis | doom | 1 | 3:03 |
| impact | Impact | greendingbat | doom2 | 2 | 1:40 |
| imparena | imparena | Mike Watson | doom2 | 1 | 5:31 |
| impoffer | impoffer | Cynical | doom2 | 2 | 18:39 |
| impsden | Imp's Den | volleyvalley | doom2 | 1 | 0:25 |
| impsev2 | impsev2 | gggmork | doom2 | 1 | 5:26 |
| impzone | impzone | John Warren | doom | 10 | 8:23 |
| inad | inad | Carl Buddig | doom2 | 5 | 5:29 |
| incence2 | incence2 | Donnel Enriquez | doom2 | 4 | 2:28 |
| indiana | Indiana Jones | Philip Luhn and John Kugelman | hexen | 1 | 0:17 |
| indifference | indifference | Andy Leaver | doom | 1 | 9:10 |
| industrl | industrl | Kevin Reay | doom2 | 1 | 2:28:07 |
| infantry | infantry | Michael Laakso | doom2 | 1 | 1:04 |
| infbase2 | infbase2 | Gothic | doom2 | 3 | 16:09 |
| infectd2 | infectd2 | Jose Luis Gallardo | doom2 | 1 | 9:48 |
| infectio | Infection | Exl | doom2 | 1 | 9:49 |
| infiltr8 | The Infiltrator | Brett Manzer | doom2 | 1 | 4:54 |
| infini | infini | Sam Ellis | doom2 | 2 | 0:53 |
| infinity | infinity | Bjorn Hermans & Holger Nathrath | doom | 20 | 3:08:10 |
| inf-lutz | inf-lutz | Christopher Lutz | doom | 46 | 3:12:55 |
| infrevs | Infinite Revenants | Revenant100 aka Marphy Black | doom2 | 1 | 0:25 |
| inhell | inhell | Peter Gizzi | doom | 8 | 5:44 |
| inmcorp | inmcorp | Martin Friberg | doom2 | 3 | 8:00 |
| inncence | inncence | Donnel Enriquez | doom2 | 9 | 7:01 |