| AV Hanafuda Club | JP | 1991 |
Hacker International | Unlicensed |
| AV Mahjong Club | JP | 1991 |
Hacker International | Unlicensed |
| AV Mahjong Club | TW | 1991 |
Hacker International | Unlicensed |
| AV Pachi-Slot | CN | 1991 |
| Unlicensed |
| AV Pachi-Slot | TW | 1991 |
Panesian | Unlicensed |
| AV Pachi-Slot - Big Chance | JP | 1991 |
Panesian | Unlicensed |
| AV Poker | CN | 1991 |
| Unlicensed |
| AV Poker | JP | 1991 |
Hacker International | Unlicensed |
| AV Soccer | JP | 1991 |
American Video Entertainment | Unlicensed |
| AV Super Real Pachinko | JP | 1991 |
Hacker International | Unlicensed |
| Adam & Eve | ES | 1991 |
Caltron | Unlicensed |
| Adam & Eve | TW | 1991 |
Gluk | Unlicensed |
| Aussie Rules Footy | AU | 1991 |
Beam Software | Commercial |
| Auto-Upturn | AS | 1991 |
Sachen | Unlicensed |
| Advanced Dungeons & Dragons - Heroes of the Lance | US | 1991-01 |
FCI | Commercial |
| Advanced Dungeons & Dragons - Heroes of the Lance | US | 1991-01 |
FCI | Prototype |
| Adventure Island II | AS | 1991-02 |
| Unlicensed |
| Adventure Island II | US | 1991-02 |
Hudson Soft | Commercial |
| Adventure Island II | US | 1991-02 |
Hudson Soft | Prototype |
| Akagawa Jirou no Yuurei Ressha | JP | 1991-02 |
King Records | Commercial |
| Adventures of Lolo 2 | EU | 1991-02-21 |
HAL Laboratory | Commercial |
| Advanced Dungeons & Dragons - Heroes of the Lance | JP | 1991-03-08 |
FCI | Commercial |
| Advanced Dungeons & Dragons - Hillsfar | JP | 1991-03-21 |
FCI | Commercial |
| Advanced Dungeons & Dragons - Pool of Radiance | JP | 1991-06-28 |
FCI | Commercial |
| A Ressha de Ikou | JP | 1991-08 |
Pony Canyon | Commercial |
| Armadillo | JP | 1991-08-09 |
IGS | Commercial |
| Adventures of Lolo 3 | US | 1991-09 |
HAL Laboratory | Commercial |
| American Gladiators | US | 1991-10 |
GameTek | Commercial |
| America Oudan Ultra Quiz - Shijou Saidai no Tatakai | JP | 1991-11-29 |
Tomy | Commercial |
| Asmik-kun Land | JP | 1991-12-20 |
Asmik | Commercial |