| # | Name | Author | For | Rating | Short description |
|---|
| 41 | Coloured Walls and Floor v1 | L | NetHack 3.4.3 | 100% | Recolours the walls and floor of special dungeon regions in TTY mode |
| 42 | Conduct: Elbereth count 1 | Ray Kulhanek | NetHack 3.4.3 | 92% | Adds the number of times you've engraved Elbereth to #conducts |
| 43 | Conducts+RL time 1.1 | Adam Borowski | NetHack 3.4.3 | 100% | A bunch of additional conducts, including "RL time wasted" |
| 44 | Confirmed polearms 1.0 | Topi Linkala | NetHack 3.4.3 | Not rated | Confirms attacks on peaceful monsters when applying a polearm |
| 45 | Confirmed (un)locking + X for twoweaponing 1.0 | Topi Linkala | NetHack 3.4.3 | Not rated | Changes X from explore mode to twoweaponing and allows user to configure (un)locking confirmation |
| 46 | Confirmed untraps 1.0 | Topi Linkala | NetHack 3.4.3 | Not rated | Allows one to bypass the confirmation of untrap attempt on a lone container. |
| 47 | Confused Magic Whistle 1.0 | Malcolm Ryan | NetHack 3.4.3 | 80% | Blowing a magic whistle while confused teleports you to one of your pets. |
| 48 | Convict Role 0.7 | Karl Garrison | NetHack 3.4.3 | 64% | Adds a new, challenging Convict role |
| 49 | Cosh v1.0 | Malcolm Ryan | NetHack 3.4.3 | Not rated | Changes backstabbing rules and adds a new weapon, the cosh |
| 50 | Crystal ball divination v1.0 | Kenneth Call, Pasi Kallinen | NetHack 3.4.3 | Not rated | Wielding a crystal ball allows you to cast divination spells more efficiently |
| 51 | Cumulative Patch 1.0a | Stan Jedrus | NetHack 3.4.3 | 80% | Includes several other patches and some pieces of Slash'em |
| 52 | Curses GUI Beta 3 | Karl Garrison | NetHack 3.4.3 | 92% | Alternate text interface GUI for NetHack |
| 53 | Curses UTF8 | John McDole | NetHack 3.4.3 | Not rated | Updated Curses GUI patch with UTF8 support |
| 54 | Cutlery v1.0 | L | NetHack 3.4.3 | Not rated | Eating the corpse of a thick-skinned monster requires a blade to be wielded |
| 55 | Damage messages v1.0 | L | NetHack 3.4.3 | 100% | Adds messages that tell how badly wounded a monster is |
| 56 | Dark Room v1.0 | Clive Crous | NetHack 3.4.3 | 100% | Adds a new glyph that represents dark parts of room. |
| 57 | Deallocated wielded objects bug fix 1.0 | Patric Mueller | NetHack 3.4.3 | Not rated | Fixes crashes by deallocated wielded objects |
| 58 | Death Explore v1.0 | Jukka Lahtinen | NetHack 3.4.3 | 90% | This patch will prompt you for going to explore mode, if you die and no bones file is created. |
| 59 | Defer Name v1.0 | Michael Lehotay | NetHack 3.4.3 | 100% | You can pick your name after everything else about your character has been determined. |
| 60 | Delay option v1.0 | Pasi Kallinen | NetHack 3.4.3 | Not rated | Adds delay-option to set the screen-refresh time |