| Zelda 3 Link Recolor (USA+GER) | N.Dpendent | The Legend of Zelda: A Link to the Past | Action Adventure | SNES | G | Improvement | 1.2 | 08 Dec 2020 |
| Zelda 3 AST Dashing | Kazuto | The Legend of Zelda: A Link to the Past | Action Adventure | SNES | GP | Improvement | 1.0 | 29 May 2016 |
| Zelda 2 Restart from palace at game over | njosro | Zelda II: The Adventure of Link | Role Playing > Action RPG | NES | O | Improvement | 1.0 | 05 Feb 2018 |
| Zelda 2 Refresh | LastduaL | Zelda II: The Adventure of Link | Role Playing > Action RPG | NES | G | Improvement | 1.0 | 12 Oct 2017 |
| Zelda 2 Redux | ShadowOne333 | Zelda II: The Adventure of Link | Role Playing > Action RPG | NES | G, S, L, T, GP, O | Improvement | 2.5.1 | 11 Mar 2021 |
| Zelda - The Legend of Link | infidelity | The Legend of Zelda | Action Adventure | NES | G, S, L, T, GP, O | Complete | 03-12-2020 | 12 Mar 2020 |
| Zelda - Link's Awakening DX Hero Mode | the_icepenguin | The Legend of Zelda: Link's Awakening DX | Action Adventure | GB | L, T, GP, O | Improvement | 2.0 | 11 Jan 2018 |
| Zelda - A Link to the Past - Master Quest | Con, Jeimuzu | The Legend of Zelda: A Link to the Past | Action Adventure | SNES | L, GP | Improvement | 2.0 | 01 Dec 2015 |
| Zanac/Zanac - FDS/NES + SRAM | Makimura Manufacturing | Zanac | Action > Shooter | NES | O | Improvement | 1.0 | 28 Sep 2012 |
| Zanac MMC5 Patch | Dracula X | Zanac | Action > Shooter | NES | O | Improvement | 1.0a | 27 May 2020 |
| Zanac Famicom Music Restoration | 8-bit fan | Zanac | Action > Shooter | NES | S | Improvement | Final | 29 Dec 2017 |
| ZAMN Reverse Inventory Cycling | Stanley_Decker, Sloat | Zombies Ate My Neighbors | Action | SNES | GP | Improvement | 1.1 | 09 Jan 2019 |
| ZAMN Bloody Ooze Hack | DackR | Zombies Ate My Neighbors | Action | SNES | G | Improvement | 1.0 | 08 Mar 2016 |
| Z22: The Adventure of Link and Lonk | Von Fahrenheit | Zelda II: The Adventure of Link | Role Playing > Action RPG | NES | GP | Improvement | 1.1 | 03 Jul 2020 |
| YY-SMB | YY | Super Mario Bros. | Action > Platformer | NES | G, L | Complete | 2.55 | 20 Apr 1999 |
| Yuu Yuu Hakusho - Need not DATACH | wangsitan | Yuu Yuu Hakusho: Bakutou Ankoku Bujutsu Kai | Action > Fighting | NES | GP, O | Complete | 1.5 | 12 Feb 2019 |
| Yume Nikki: FC Demon's Revenge | Compass Man | Bomberman | Action | NES | G | Improvement | 1.0 | 20 Jan 2018 |
| Yuletide Bros. | Megafield64 | Mario Bros. | Action > Platformer | NES | G | Improvement | 1.0 | 21 Dec 2013 |
| Yuan Shao's Revenge | MiDKnighT | Destiny of an Emperor | Role Playing | NES | G, L, T, GP | Complete | 2.0 | 23 Aug 2012 |
| Yu-Gi-Oh: The Sacred Cards - Play as Mai Valentine | Rob009 | Yu-Gi-Oh! The Sacred Cards | Card Game | GBA | G | Improvement | 1.0 | 19 Jul 2020 |
