| 19?? | | Interstellar Laser Fantasy | Funai/Gakken | 1983 |
| Intrepid (set 1) | Nova Games Ltd. | 1983 |
| Intrepid (set 2) | Nova Games Ltd. | 1983 |
| Intruder | Taito (GamePlan license?) | 1980 |
| Invader's Revenge | Zenitone-Microsec Ltd. | 19?? |
| Invader's Revenge (Dutchford) | Zenitone-Microsec Ltd. (Dutchford licens | 19?? |
| Invasion (bootleg, set 1, normal graphics) | bootleg | 19?? |
| Invasion (bootleg, set 2, no copyright) | bootleg | 19?? |
| Invasion (bootleg, set 3, R Z SRL Bologna) | bootleg (R Z SRL Bologna) | 19?? |
| Invasion (bootleg, set 4, R Z SRL Bologna) | bootleg (R Z SRL Bologna) | 19?? |
| Invasion (Sidam) | Sidam | 19?? |
| Invasion - The Abductors (version 4.0) | Midway | 1999 |
| Invasion - The Abductors (version 5.0) | Midway | 1999 |
| Invinco | Sega | 1979 |
| Invinco / Deep Scan | Sega | 1979 |
| Invinco / Head On 2 | Sega | 1979 |
| IPM Invader | IPM | 1979 |
| IPM Invader (Incomplete Dump) | IPM | 1979 |
| Ippatsu Gyakuten [BET] (Japan) | Public Software / Paradais | 1986 |
| IQ Pipe | AMT | 1991 |
| IQ-Block | IGS | 1993 |
| Iron (SNES bootleg) | bootleg | 1996 |
| Iron Fortress | Eolith | 1998 |
| Iron Fortress (Japan) | Eolith | 1998 |
| Iron Horse | Konami | 1986 |
| Ironman Ivan Stewart's Super Off-Road | Leland Corp. | 1989 |
| Ironman Ivan Stewart's Super Off-Road Track-Pak | Leland Corp. | 1989 |
| Ironman Ivan Stewart's Super Off-Road Track-Pak (2 Players) | Leland Corp. | 1989 |
| Island (050713) | Igrosoft | 2005 |
| Island (050713, backdoor) | Igrosoft | 2005 |
| Island 2 (060529) | Igrosoft | 2006 |
| Island 2 (060529, banking address hack) | Igrosoft | 2006 |
| Ixion (prototype) | Sega | 1983 |