28 wads
| File | Name | Author | Iwad | Demos | Length |
|---|---|---|---|---|---|
| x | x | James Brown | doom | 1 | 6:03 |
| x8a7 | x8a7 | Graham Baird | doom | 5 | 3:01 |
| xa-iforg | xa-iforg | Xaser & Not Jabba | heretic | 2 | 3:32 |
| xana | xana | Memfis | doom2 | 3 | 4:19 |
| xaos | xaos | John Bly | doom2 | 1 | 12:41 |
| xaserpic | xaserpic | TimeOfDeath | doom2 | 1 | 11:20 |
| xa-sharp | xa-sharp | Xaser Acheron | doom | 1 | 25:25 |
| xcal1 | xcal1 | Xcalibur | doom2 | 5 | 1:03 |
| xcalib11 | xcalib11 | Stefan Maes | doom | 3 | 17:13 |
| xdoom3b | XDOOM3.WAD | The Gang at JTS Software! | doom2 | 19 | 42:43 |
| xeno11 | xeno11 | Daniel Griffiths | doom | 1 | 6:29 |
| xeno_pen | xeno_pen | Roy Ford | doom2 | 1 | 4:37 |
| xenusrev | xenusrev | Alter | doom | 3 | 1:21:22 |
| xerxesia | Xerxesia | Devon Barnett (Xyzzy01) | doom2 | 34 | 37:23 |
| xfire | xfire | Marcus Westrup | doom | 1 | 17:51 |
| x_ings | x_ings | Stefano Biefeni | doom | 1 | 12:33 |
| xmas04be | Xmas 2004 | Gemini | doom2 | 1 | 0:04 |
| xmas1 | xmas1 | Yukio Ide | doom | 29 | 34:14 |
| xmas_1994 | X-MAS NIGHTMARE | ByteBrothers Software | doom | 13 | 7:56 |
| xmas_2000 | X-MAS DEATHMATCH | Tormentor667 Acidflash (some graphics) | doom2 | 6 | 4:32 |
| xmaschill | Christmas Cheer from t... | Various | doom2 | 55 | 2:06:41 |
| xmasdm2 | XmasDoom | Justin Madigan & Jeff Lockhart | doom2 | 5 | 5:59 |
| xmasdm98 | XMas DM -98 | Sir Robin (aka Jani Saksa) | doom2 | 3 | 0:10 |
| xmasdm99 | XMas DM 1999 | Sir Robin (aka Jani Saksa) | doom2 | 2 | 0:06 |
| xmasdoom | xmasdoom | Various | doom2 | 33 | 1:10:03 |
| xmashtic | A Heretic X-Mas | Blaine, Archmage of The HexenC Arcanum | heretic | 3 | 14:17 |
| xmdmlt99 | XMas DM 1999 Light | Sir Robin (aka Jani Saksa) | doom2 | 1 | 0:03 |
| xplanada | xplanada | vdgg | doom2 | 3 | 37:49 |