25 wads
| File | Name | Author | Iwad | Demos | Length |
|---|---|---|---|---|---|
| jesus-x | Jesus DeathMatch | Walter "Daimon" Confalonieri | doom | 2 | 0:52 |
| 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 |
| jnnhangr | JNNHangar | joshthenesnerd | doom | 2 | 12:14 |
| jobe | Jobe | Marc Fontaine | doom | 1 | 6:29 |
| joetune | joetune | Various | doom2 | 2 | 3:59 |
| johann1 | JOHANN1.WAD | Greg Cymbalist | doom | 1 | 3:14 |
| joi_lstcv15 | Lost civilization | Jaakko "Jaska" Impola [JOI in maps] | doom2 | 64 | 10:04:36 |
| jow | jow | Jason Wainman | doom2 | 43 | 4:06:24 |
| joymaps1 | joymaps1 | Various | doom2 | 40 | 28:10 |
| joymaps2 | joymaps2 | Various | doom2 | 4 | 6:03 |
| jpcp | Japanese Community Pro... | Various | doom2 | 143 | 10:43:45 |
| jptr_v40 | jptr_v40 | Christen Klie & Bob Carter | doom | 6 | 7:35 |
| jq2 | JQ_2 | Ribbiks | doom2 | 14 | 22:06 |
| jspd1 | Jimbo's Single Player ... | Jimbo | doom2 | 1 | 6:55 |
| jth | jth | Isaac Rodriguez | doom2 | 90 | 16:46:06 |
| jth2 | Journey To Hell | Isaac Rodriguez | doom2 | 14 | 1:19:45 |
| judgemnt | Judgement | Jessica Parrish | doom2 | 1 | 2:13 |
| judgment | Judgment | Rayziik | doom2 | 278 | 22:24:19 |
| judgmentrt | Judgment: Retrial | Rayziik | doom2 | 0 | 0:00 |