| Zippy Race - Sega SG-1000 to MSX conversion | hap | Zippy Race | Racing | SG1K | GP | Complete | 1.0 | 23 Jan 2007 |
| 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 - Snake | Priboi | Zero Tolerance | Action | GEN | L | Complete | 1.0 | 10 Nov 2009 |
| Zero Tolerance - Labyrinth Death | Priboi | Zero Tolerance | Action | GEN | L | Complete | 1.0 | 10 Nov 2009 |
| Zero Stance | ThegreatBen | Mega Man X3 | Action > Platformer | SNES | G | Improvement | 1.0 | 01 Mar 2017 |
| Zero Saber | Docrow | Mega Man X3 | Action > Platformer | SNES | GP, O | Addendum | 1.1 | 09 Jul 2017 |
| Zero Project | Justin3009 | Mega Man X3 | Action > Platformer | SNES | G, T, GP | Improvement | 3.1 | 31 Jan 2012 |
| 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: Minish Cap - Wind Waker Voices | Weario | The Legend of Zelda: The Minish Cap | Action Adventure | GBA | S | Improvement | 1.0 | 14 Jul 2019 |
| Zelda: Link’s Awakening Turbo-Français | kemenaran | The Legend of Zelda: Link's Awakening DX | Action Adventure | GB | T | Improvement | 1.2 | 28 Nov 2022 |
| Zelda: A Swear To The P*st | Meliz | The Legend of Zelda: A Link to the Past | Action Adventure | SNES | G, T | Complete | 1.0 | 08 Jan 2008 |
| Zelda3 Time & Day/Night cycling system | JaSp | The Legend of Zelda: A Link to the Past | Action Adventure | SNES | G | Improvement | 2.0 | 06 Sep 2006 |
| Zelda3 PuzzleDudes Quest | PuzzleDude | The Legend of Zelda: A Link to the Past | Action Adventure | SNES | L, GP | Complete | 1.1 | 06 Jan 2011 |
| Zelda3 Parallel Worlds | Euclid | The Legend of Zelda: A Link to the Past | Action Adventure | SNES | G, S, L, T, GP | Complete | 1.23 | 27 Mar 2017 |
| Zelda3 Parallel Remodel | Euclid | The Legend of Zelda: A Link to the Past | Action Adventure | SNES | G, S, L, T, GP | Complete | 1.1 | 09 Aug 2012 |
| Zelda3 IQ test Revenge of the Einstein | PuzzleDude | The Legend of Zelda: A Link to the Past | Action Adventure | SNES | G, L, T, GP | Complete | 1.0 | 29 Jan 2017 |
| Zelda3 IQ test Remodel | PuzzleDude | The Legend of Zelda: A Link to the Past | Action Adventure | SNES | G, L, T, GP | Complete | 1.0 | 06 Nov 2016 |
| Zelda3 IQ test | Con | The Legend of Zelda: A Link to the Past | Action Adventure | SNES | G, L, T, GP, O | Complete | 2.1 | 29 Oct 2016 |
