25 wads
| File | Name | Author | Iwad | Demos | Length |
|---|---|---|---|---|---|
| jal_cas1 | jal_cas1 | James Legg | doom | 3 | 3:10 |
| jamep1 | J.A.M. (Just A Mapset)... | Vortale | doom2 | 25 | 1:37:02 |
| janine | January Ninth | Jon 40oz Vail | doom2 | 2 | 2:21 |
| jaq | jaq | Retog | doom2 | 4 | 5:03 |
| jawsofdest | Jaws of Destruction | finnks13 | doom2 | 18 | 30:57 |
| jax04 | jax04 | Glenn Jackson | doom2 | 3 | 10:01 |
| jbat | Jack Builds a Techbase | Xulgonoth & Benchy | doom2 | 3 | 25:26 |
| jbl-500 | Wierd World Cave JBL-500 | Roo | doom2 | 5 | 2:18 |
| jb-reces | jb-reces | Joe Becht | doom2 | 15 | 43:07 |
| jcm1 | JCM1.WAD | JC MegaByte | doom | 6 | 35:11 |
| jcm1-16 | jcm1-16.zip | JC MegaByte | doom | 50 | 4:13:34 |
| jcm2-16 | jcm2-16 | JC MegaByte | doom | 45 | 3:35:18 |
| jdtags | JagDogger's Very First... | JagDogger2525 | doom2 | 1 | 0:12 |
| jeff247 | jeff247 | Unknown | doom | 1 | 11:05 |
| jeffhell | jeffhell | Jeff Velten | doom | 2 | 3:23 |
| jenesis | JENESIS | James Paddock | doom2 | 205 | 22:54:45 |
| jerry | #969.WAD | Guy Babin | doom | 3 | 3:38 |
| jesus-x | Jesus DeathMatch | Walter "Daimon" Confalonieri | doom | 4 | 1:28 |
| jhcool | JHCOOL.wad | Unknown | doom2 | 59 | 42:33 |
| jiffybag | Jiffy Bag | Jimmy | doom2 | 65 | 2:19:11 |
| jiggi | jiggi | Ruba | doom2 | 7 | 9:52 |
| jimmy | jimmy | Jim Shrum | doom2 | 3 | 4:48 |
| jimmy_1997 | JIMMY3.WAD | Jimmy Pierce | doom | 1 | 0:43 |
| jimstout | STOUT.WAD | James Stout | doom2 | 3 | 7:35 |
| jl2 | waste of time | Joe Leonard | doom2 | 4 | 4:45 |