| A Very Super Mario World | SchwerMuta | Super Mario World | Action > Platformer | SNES | G, S, L, T, GP, O | Complete | 1.0 | 04 Aug 2015 |
| A Week of Garfield - Sprite Update | Zynk Oxhyde | A Week of Garfield | Action > Platformer | NES | G, T | Improvement | 1.0 | 04 Jun 2022 |
| Aaahh!!! Real Monsters Improvement Mod | Aszaxa | Aaahh!!! Real Monsters | Action > Platformer | GEN | GP | Improvement | 1.0 | 13 Aug 2022 |
| Abadox | MrNorbert1994 | Abadox: The Deadly Inner War | Action > Shooter | NES | G | Bug Fix | 1.0 | 11 Nov 2019 |
| Abadox - The Deadly Inner War - Color hack. | wolfamancer97 | Abadox: The Deadly Inner War | Action > Shooter | NES | G, T, O | Complete | 1.0 | 20 Oct 2020 |
| Abu Travels in Agrabah | Mario Bendor | Aladdin | Action > Platformer | NES | G, S, GP | Complete | 1.0 | 27 Nov 2020 |
| Accelerometer removal patch | infinest | Kirby - Tilt 'n' Tumble | Action | GB | G, GP | Improvement | 1.2 | 22 May 2022 |
| Action 52 Atari 2600 Graphics Edition | nensondubois | Action 52 | Other | NES | G | Complete | 1.0 | 20 Apr 2020 |
| Active Time Battle Improvements | x11 | Final Fantasy IV | Role Playing | SNES | G, GP | Improvement | 1.0 | 08 May 2010 |
| ActRaiser 2 - Godly Master | Lufia | ActRaiser 2 | Action > Platformer | SNES | GP | Improvement | 1.0 | 13 Dec 2022 |
| Actraiser II Easy spell | Docrow | ActRaiser 2 | Action > Platformer | SNES | GP | Improvement | 1.0 | 17 Jun 2016 |
| ActRaiser MSU-1 | DarkShock | ActRaiser | Action Adventure | SNES | S | Improvement | 1.0 | 26 Nov 2017 |
| Addams Family - MMC1 to MMC3 | infidelity | The Addams Family | Action > Platformer | NES | O | Improvement | 1.0 | 17 Sep 2013 |
| Addams Family Easy | chronix | The Addams Family | Action > Platformer | NES | O | Improvement | 1.0 | 02 Feb 2019 |
| Addams Family Nes Dx | Fray | The Addams Family | Action > Platformer | NES | G | Improvement | 1.01 | 01 May 2020 |
| Addams Family Values - Afterlife Edition MD | BillyTime! Games | Addams Family Values | Action Adventure | GEN | T, GP | Improvement | 1.0 | 27 Oct 2020 |
| Addams Family Values - The Gauntlet | BillyTime! Games | Addams Family Values | Action Adventure | SNES | L, GP | Complete | 1.0a | 29 Mar 2020 |
| Addams Family Values Afterlife Edition | BillyTime! Games | Addams Family Values | Action Adventure | SNES | L, GP | Improvement | 1.0 | 30 Nov 2019 |
| Addams Family Values Boss Rush | BillyTime! Games | Addams Family Values | Action Adventure | SNES | L, GP | Complete | 1.0 | 28 Dec 2019 |
| Adding Spells to Spell Lists Patch | Phoenix Hacks | Final Fantasy II | Role Playing | SNES | GP | Improvement | 1.0 | 09 Sep 2008 |
