| # | Name | Author | For | Rating | Short description |
|---|
| 21 | Univirgin 1.0 | Adam Borowski | NetHack 3.4.3 | Not rated | Makes peaceful unicorns not afraid of female virgins |
| 22 | Unicode v0.1 | Matthew Snyder | NetHack 3.4.3 | Not rated | IBMGraphics emulation via unicode |
| 23 | Underwater Candelabrum Fix | Sgeo | NetHack 3.4.3 | Not rated | Inelegantly fixes the bug that prevents one from attaching candles to the candelabrum while underwater |
| 24 | Underground Rivers v1.0 | Pasi Kallinen | NetHack 3.4.3 | 90% | Dungeons below dlvl 13 occasionally have rivers, either of water or lava. |
| 25 | Turbonerd Patch 0.1.0 | Daniel Franke | NetHack 3.4.3 | 80% | A patch adding the User Friendly-inspired Turbonerd character class to Nethack. |
| 26 | Tree Cutting v1.0 | Michael Lehotay | NetHack 3.4.3 | 100% | If you cut down a tree, it gives you some clubs and quarterstaves. |
| 27 | Travel improved 1.2 | Patric Mueller | NetHack 3.4.3 | Not rated | Improves the travel command through better target selection |
| 28 | Traps displayed above items 0.1.1 | Philip Potter | NetHack 3.4.3 | 100% | Adds a command to display traps above items instead of below |
| 29 | Torch v1.0 | Malcolm Ryan | NetHack 3.4.0 | Not rated | Adds a new weapon/light-source, the torch. |
| 30 | Toon Hits v1.0 | Pasi Kallinen | NetHack 3.4.3 | 92% | Add cartoony "sound effects" to fist fights and enthusiastic interjections to everything when hallucinating |
| 31 | ^T Level Teleporter Jump Patch 0.01 | Stevie-O | NetHack 3.4.3 | 80% | ^T while standing on a level teleporter activates the trap. |
| 32 | Tinning Rust Monsters 1.0 | Malcolm Ryan | NetHack 3.4.3 | 80% | Tinning a rust monster, or any other corrosion-causing monster, will rust your tinning kit. |
| 33 | Tinfoil Hat v1.0 | Malcolm Ryan | NetHack 3.4.3 | 60% | Adds a new armor type, the tinfoil hat. It blocks psychic energy, blocking telepathy (both in and out). |
| 34 | Thievery v1.0 | Andreas Dorn | NetHack 3.4.1 | 94% | Changes the bare-handed attack for rogues into a stealing special attack. |
| 35 | Telnet Tiles Server 1.0b | Justin Hiltscher | NetHack 3.4.3 | Not rated | Server patch for TelnetTiles |
| 36 | Succubus YAFM v1.0 | Scott Bigham | NetHack 3.4.3 | Not rated | Adds a funny message if a succubus wants to seduce you. |
| 37 | #sticky v6 | Scott Bigham | NetHack 3.4.1 | Not rated | Adds a new extended command, #sticky |
| 38 | Statuscolors and hitpointbar 2 | tungtn | NetHack 3.6.0 | 80% | Custom rule-based coloring for status fields and visual bar for hit points |
| 39 | Statuscolors 1.2 | Shachaf & Oren Ben-Kiki | NetHack 3.4.3 | 84% | Customizable coloring for the status (bottom) lines |
| 40 | Statue Glyphs v1.0 | Malcolm Ryan, Carl Mummert | NetHack 3.4.3 | 60% | Statues are displayed using monster glyphs |