63 wads
| File | Name | Author | Iwad | Demos | Length |
|---|---|---|---|---|---|
| jackalope | Jackalope | Ribbiks | doom2 | 1 | 1:57 |
| jadearth | jadearth | Jodwin | doom2 | 3 | 2:29:38 |
| jaded | Jaded | lunchlunch | doom2 | 4 | 54:05 |
| jagedg01 | jagedg01 | Qingshuo Wang | doom2 | 2 | 7:57 |
| jagedg02 | jagedg02 | Qingshuo Wang | doom2 | 2 | 6:14 |
| jagedg03 | jagedg03 | Qingshuo Wang | doom2 | 2 | 17:06 |
| jail | jail | Kevin Sullivan | doom2 | 1 | 11:26 |
| jailbait | jailbait | Unknown | doom | 1 | 7:50 |
| jailbrk | JAILBREAK! JAIL BREAK ... | DAVE YERGEAU | doom2 | 2 | 6:21 |
| jail_wad | jail_wad | Unknown | doom | 2 | 3:58 |
| jakobs | jakobs | Ruba | doom2 | 8 | 8:10 |
| jal_cas1 | jal_cas1 | James Legg | doom | 3 | 3:10 |
| jamep1 | J.A.M. (Just A Mapset)... | Vortale | doom2 | 23 | 1:36:00 |
| 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 |
| jbl-500 | Wierd World Cave JBL-500 | Roo | doom2 | 4 | 2:10 |
| 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 |
| 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 | 2 | 0:52 |
| jhcool | JHCOOL.wad | Unknown | doom2 | 59 | 42:33 |
| jiffybag | Jiffy Bag | Jimmy | doom2 | 63 | 2:16:50 |
| 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 | 36 | 3:00:19 |
| jow | jow | Jason Wainman | doom2 | 43 | 4:06:24 |
| joymaps1 | joymaps1 | Various | doom2 | 34 | 19:22 |
| joymaps2 | joymaps2 | Various | doom2 | 4 | 6:03 |
| jpcp | Japanese Community Pro... | Various | doom2 | 140 | 10:42:17 |
| jptr_v40 | jptr_v40 | Christen Klie & Bob Carter | doom | 5 | 5:41 |
| 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 | 277 | 22:20:00 |
| judgmentrt | Judgment: Retrial | Rayziik | doom2 | 0 | 0:00 |
| jumpwad | JUMPWAD | Ribbiks & Grain of Salt | doom2 | 37 | 3:39:07 |
| jungle | jungle | Walter Confalonieri | doom2 | 2 | 5:09 |
| junkfood | Junkfood | Various | doom2 | 480 | 33:14:14 |
| junkfood2 | Junkfood 2: Summertime... | Various | doom2 | 350 | 46:08:57 |
| junkfood3 | Junkfood 3: Wow Wow West | Various | doom2 | 253 | 26:54:19 |
| jupcarn2 | Jupiter Carnage 2: To ... | Bzzrak Ktazzz | doom | 1 | 1:43 |
| jupcarn3 | Jupiter Carnage 3! | Bzzrak Ktazzz | doom | 2 | 13:29 |
| jupcarna | Jupiter Carnage! | Bzzrak Ktazzz | doom | 1 | 1:28 |
| jusshoot | jusshoot | Unknown | doom2 | 4 | 2:02 |
| justec | justec | Thomas J. | doom | 2 | 9:21 |
| justgo | justgo | gggmork | doom2 | 7 | 33:01 |
| justify | justify | Antony Burden | doom2 | 1 | 8:54 |