25 wads
| File | Name | Author | Iwad | Demos | Length |
|---|---|---|---|---|---|
| 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 | 2 | 0:08 |
| 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 | 75 | 2:14:56 |
| 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 |
| yab | yab | Patrick Martin | doom2 | 9 | 19:03 |
| yakworld | yakworld | Spackle Ltd. | doom | 2 | 12:57 |
| yaotzin | yaotzin | William Green | doom2 | 3 | 19:51 |
| yapper1 | yapper1 | Eric Buchanan | doom2 | 4 | 9:04 |
| yeahman | yeahman | Bert elzinga | doom2 | 2 | 4:36 |
| year_21 | year_21 | The Green Herring | doom2 | 11 | 10:32 |
| year_22 | year_22 | The Green Herring | doom2 | 4 | 18:19 |
| year_23 | year_23 | The Green Herring | doom2 | 2 | 41:10 |
| yeehaw | YEEEEEEEEEEEEEEEEEEEEE... | anonymous author | doom2 | 4 | 0:48 |
| yellow | yellow | Unknown | doom | 1 | 20:54 |