| Wayne Gretzky Hockey: Colour Team Names | NaOH | Wayne Gretzky Hockey | Sports | NES | T | Improvement | 1.0 | 23 Jan 2020 |
| WCW Master's Original Portrait & Head | SCD | WCW World Championship Wrestling | Sports | NES | G | Improvement | Final | 29 May 2018 |
| Easy moves and Zarak | Docrow | WeaponLord | Action > Fighting | SNES | GP | Improvement | 1.0 | 01 Mar 2019 |
| Wendy: Every Witch Way - Force GBA Enhanced Mode | celebi23 | Wendy: Every Witch Way | Action > Platformer | GB | G | Improvement | 1.0 | 14 Jun 2018 |
| Wheel of Fortune Gamer Edition | jeffXvX | Wheel of Fortune | Puzzle | NES | T, O | Improvement | 1.0 | 04 Nov 2018 |
| Where's Waldo Big Cursor | guitarpalooz | Where's Waldo? | Puzzle | NES | GP | Improvement | 1.0 | 07 Dec 2020 |
| Saiyuki World 2 MMC-3 Hack | MottZilla | Whomp 'Em | Action > Platformer | NES | O | Improvement | 1.0 | 11 Aug 2008 |
| Anon Gunman | Inventor | Wild Gunman | Action > Shooter | NES | G | Complete | 1.0 | 01 Jan 2000 |
| Fast Gunman | Inventor | Wild Gunman | Action > Shooter | NES | G | Complete | 1.0 | 01 Jan 2001 |
| Willow No Flash Hack | Jigglysaint | Willow | Role Playing > Action RPG | NES | G | Improvement | 1.1 | 10 Nov 2020 |
| Wit's UNROM to MMC3 | BZK | Wit's | Other | NES | O | Improvement | 001 | 04 Oct 2016 |
| Wizardry Empire - bug fix | rainponcho | Wizardry Empire | Role Playing | GB | GP, O | Bug Fix | 0.1 | 06 Mar 2017 |
| Wizardry Empire: Fukkatsu no Tsue - bug fix | rainponcho | Wizardry Empire: Fukkatsu no Tsue | Role Playing | GB | O | Bug Fix | 0.2 | 22 Feb 2017 |
| Wizardry Empire: Fukkatsu no Tsue - uncensor | rainponcho | Wizardry Empire: Fukkatsu no Tsue | Role Playing | GB | G | Improvement | 0.3 | 22 Feb 2017 |
| Wizardry 1st Trilogy Rebalancing Mod | Gideon Zhi, ludmeister | Wizardry I-II-III: Story of Llylgamyn | Role Playing | SNES | T, GP | Improvement | 1.0, rev.6 | 18 May 2012 |
| Reroll-free character creation | paintmyproblem | Wizardry: Bane of the Cosmic Forge | Role Playing | SNES | GP | Improvement | 1.0 | 05 Oct 2019 |
| Wizardry I spell disambiguation patch | Leviathan Mist | Wizardry: Proving Grounds of the Mad Overlord | Role Playing | NES | T | Improvement | 1.00 | 07 Jun 2009 |
| Wizardry - Proving Grounds of the Mad Overlord AC fix | fatboysim13 | Wizardry: Proving Grounds of the Mad Overlord | Role Playing | NES | G, GP | Bug Fix | 1.0 | 14 Dec 2013 |
| Wolfenstein 3D Jaguar fix | Alex Pilipenko | Wolfenstein 3D (Jaguar) | Action > Shooter | JAG | G, T | Improvement | 1.0 | 12 Jan 2021 |
| Wolverine Easy Version | MottZilla | Wolverine | Action > Platformer | NES | GP | Improvement | 1.0 | 06 Feb 2012 |
