25 wads
| File | Name | Author | Iwad | Demos | Length |
|---|---|---|---|---|---|
| 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 | 71 | 10:14:20 |
| josfun | josfun.zip | Jan-Ove Saevik | doom | 2 | 5:04 |
| 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 | 283 | 22:33:26 |
| judgmentrt | Judgment: Retrial | Rayziik | doom2 | 20 | 50:05 |
| jumpwad | JUMPWAD | Ribbiks & Grain of Salt | doom2 | 37 | 3:39:07 |
| jungle | jungle | Walter Confalonieri | doom2 | 2 | 5:09 |
| junkfood | Junkfood | Various | doom2 | 590 | 48:42:07 |
| junkfood2 | Junkfood 2: Summertime... | Various | doom2 | 389 | 56:51:06 |
| junkfood3 | Junkfood 3: Wow Wow West | Various | doom2 | 312 | 45:06:19 |
| junkfood4 | Junkfood 4: Slotterween | Various | doom2 | 209 | 44:54:56 |
| jupcarn2 | Jupiter Carnage 2: To ... | Bzzrak Ktazzz | doom | 1 | 1:43 |
| jupcarn3 | Jupiter Carnage 3! | Bzzrak Ktazzz | doom | 2 | 13:29 |