| Id | Name | Systems | Actions |
|---|---|---|---|
| 92 | Altered Beast | Genesis | Versions |
| 1737 | Altered Space: A 3-D Alien Adventure | GB | Versions |
| 2704 | AlterEgo | Genesis | Versions |
| 2750 | Alundra | PSX | Versions |
| 2700 | Alwa's Awakening: The 8-Bit Edition | NES | Versions |
| 3339 | AM2R (Another Metroid 2 Remake) | Linux | Versions |
| 322 | Amagon | NES | Versions |
| 2895 | Amazing Penguin | GB | Versions |
| 1016 | American Gladiators | NES | Versions |
| 2522 | American Idol | GBA | Versions |
| 2311 | AMOK! | O2 | Versions |
| 3127 | Amy Rose in Sonic the Hedgehog | Genesis | Versions |
| 1216 | An American Tail: Fievel Goes West | SNES | Versions |
| 3607 | Anarchaeologist | GBA | Versions |
| 2383 | Anarchy | C64 | Versions |
| 2215 | Angry Birds | NES | Versions |
| 2214 | Angry Birds (Nice Code) | NES | Versions |
| 3892 | Anguna: Warriors of Virtue | GBA | Versions |
| 3465 | Animancer | Linux | Versions |
| 534 | Animaniacs | SNES | Versions |
| 3416 | Animaniacs | Genesis | Versions |
| 3430 | Animaniacs | GB | Versions |
| 2048 | Animorphs: Shattered Reality | PSX | Versions |
| 2602 | Another Code: Two Memories | DS | Versions |
| 848 | Antarctic Adventure | MSX | Versions |