| Ultima: A New Exodus | ludmeister | Ultima: Exodus | Role Playing | NES | T, GP | Improvement | 1.0 | 17 Jan 2012 |
| Ultima: Exodus Remastered | Fox Cunning | Ultima: Exodus | Role Playing | NES | G, L, T, GP, O | Complete | 2.06 | 29 Dec 2020 |
| Ultima: Touhou of Virtue | DASTARD | Ultima: Runes of Virtue | Role Playing > Action RPG | GB | G, T, GP | Complete | 1.02 | 01 May 2009 |
| Ultimate Mortal Kombat Trilogy | KABAL_MK | Ultimate Mortal Kombat 3 | Action > Fighting | GEN | G, S, L, T, GP, O | Complete | 23 (5125) | 30 Mar 2014 |
| Mortal Kombat Revelations | Smoke | Ultimate Mortal Kombat 3 | Action > Fighting | GEN | G, S, L, T, GP | Complete | 1.00 | 10 Sep 2012 |
| Ultimate Mortal Kombat 3 - Arcade Hack | Nemesis_c | Ultimate Mortal Kombat 3 | Action > Fighting | GEN | G, S, GP | Improvement | 0.6 | 05 Jan 2012 |
| Ultimate Mortal Kombat 3 - Redux | RealGaea | Ultimate Mortal Kombat 3 | Action > Fighting | SNES | G, S | Improvement | 1.1 | 11 Aug 2017 |
| Enable bosses and secret menus | Docrow | Ultimate Mortal Kombat 3 | Action > Fighting | SNES | GP | Improvement | 1.0 | 08 Jun 2019 |
| Ultimate Mortal Kombat 3 Project | Lucas Dext5r | Ultimate Mortal Kombat 3 | Action > Fighting | SNES | G, L | Improvement | 1.4.2 | 20 Oct 2020 |
| Ultimate Mortal Kombat 3 Balanced Edition | Tastheblood | Ultimate Mortal Kombat 3 | Action > Fighting | GEN | GP | Improvement | 1.0 | 19 Jan 2021 |
| Uninvited Uncensored | Safaribans, Dragoon ZERO | Uninvited | Adventure | NES | G, T | Improvement | 1.0f | 24 Aug 2010 |
| Uniracers Uncensored | Q | Uniracers | Racing | SNES | T, O | Improvement | 1.0 | 30 Sep 2018 |
| Urban Champion Atarisized | Megafield64 | Urban Champion | Action > Fighting | NES | G | Complete | 2.0 | 15 Jan 2014 |
| Valis++ | Sliver X | Valis: The Fantasm Soldier | Action > Platformer | NES | G, T, GP | Improvement | 1.01 | 12 Jun 2007 |
| Akumajo Dracula - Vampire Killer - Improvements | FRS | Vampire Killer | Action > Platformer | MSX | O | Improvement | 1.0 | 26 Jul 2011 |
| Vandal Hearts 2 - Take Turns Hack | paul_met | Vandal Hearts II | Strategy > Turn Based | PSX | GP | Improvement | 1.0 | 15 Sep 2020 |
| Vapor Trail - Enhanced Colors | Pyron | Vapor Trail: Hyper Offence Formation | Action > Shooter | GEN | G | Improvement | 2.0 | 25 Jun 2015 |
| Vertical Force Debug Menu | Parasyte | Vertical Force | Action > Shooter | VB | O | Improvement | 1.0 | 04 Apr 2003 |
| Vice: Project Doom (easy) | DANGER X | Vice: Project Doom | Action | NES | GP | Improvement | 1.0 | 27 May 2013 |
| Virtua Fighter 4:Evolution - Unlock Dural | [John] | Virtua Fighter 4: Evolution | Action > Fighting | PS2 | O | Improvement | 1.0 | 13 Jun 2019 |
