| Zombies Ate My Neighbors: Dr Tongue's Revenge | Skylar Brock | Zombies Ate My Neighbors | Action | SNES | L | Complete | 2.0 | 08 Jun 2017 |
| Elite Zombies Ate My Neighbors | Zombie101 | Zombies Ate My Neighbors | Action | SNES | G, S, L, T, GP, O | Complete | 1.1a | 13 Dec 2020 |
| Impossible? Zombies Ate My Neighbors | Joseph K | Zombies Ate My Neighbors | Action | SNES | G, L, T | Complete | 1.0 | 24 Jun 2019 |
| ZAMN Reverse Inventory Cycling | Stanley_Decker | Zombies Ate My Neighbors | Action | SNES | GP | Improvement | 1.1 | 09 Jan 2019 |
| Zombie Hunter Bug Fix | KingMike's Translations | Zombie Hunter | Role Playing > Action RPG | NES | GP | Bug Fix | 1.0 | 31 Jan 2006 |
| Zippy Race Speed hack | Guyver (X.B.M.) | Zippy Race | Racing | NES | GP | Addendum | 1.0 | 19 Feb 2021 |
| Zippy Race - Sega SG-1000 to MSX conversion | hap | Zippy Race | Racing | SG1K | GP | Complete | 1.0 | 23 Jan 2007 |
| Traverse USA - Race of Post-Apocalypse | HarvettFox96 | Zippy Race | Racing | NES | G, T | Complete | 2017.06.23 | 01 Jun 2017 |
| Zillion Slight Improvement | Johnny | Zillion | Action | SMS | T | Improvement | 1.0 | 30 Dec 2011 |
| Zettai Muteki Raijin-Oh - Continue Hack (J / E) | blackdrake | Zettai Muteki Raijin-Oh | Action > Fighting | GB | GP | Improvement | 1.0 | 23 Jul 2009 |
| Zero Wing (Europe) 60Hz NTSC patch | bigboo | Zero Wing | Action > Shooter | GEN | O | Improvement | 1.0 | 18 Jun 2017 |
| Zero Tolerance - Labyrinth Death | Priboi | Zero Tolerance | Action | GEN | L | Complete | 1.0 | 10 Nov 2009 |
| Zero Tolerance - Snake | Priboi | Zero Tolerance | Action | GEN | L | Complete | 1.0 | 10 Nov 2009 |
| Zenkoku Juudan Ultra Shinri Game Music Bugfix | Kung Fu Furby | Zenkoku Juudan Ultra Shinri Game | Other | SNES | S | Bug Fix | 1.0 | 28 Dec 2019 |
| Zelda no Densetsu FDS - secret door chime | rainponcho | Zelda no Densetsu: The Hyrule Fantasy | Action Adventure | FDS | S | Bug Fix | 0.1 | 19 Apr 2017 |
| Antigrinding | Ilya Indigo | Zelda no Densetsu: The Hyrule Fantasy | Action Adventure | FDS | GP, O | Improvement | 1.1 | 18 Aug 2020 |
| Antigrinding | Ilya Indigo | Zelda II: The Adventure of Link | Role Playing > Action RPG | NES | GP, O | Improvement | 1.0 | 15 Sep 2019 |
| Zelda 2 Redux | ShadowOne333 | Zelda II: The Adventure of Link | Role Playing > Action RPG | NES | G, S, L, T, GP, O | Improvement | 3.0 | 14 Dec 2021 |
| Zelda II: The Adventure of Error | Nesplayer | Zelda II: The Adventure of Link | Role Playing > Action RPG | NES | G, T | Complete | 1.0 | 04 Sep 2004 |
| Zelda II: Playable Iron Knuckle | Z9Lurker | Zelda II: The Adventure of Link | Role Playing > Action RPG | NES | G | Improvement | 1.0 | 02 May 2021 |
