| PC/MS-Windows CD |  iF/A-18E Carrier Strike Fighter | 1998 | Interactive Magic |
| Nintendo 64 cart. | Iggy's Reckin' Balls | 1998 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Nintendo 64 cart. | Iggy-kun no Bura Bura Poyon Model NUS-NWBJ | 1998 | Acclaim Japan |
| Fruit Machine | Impulse | 1998 | JPM International |
| Fruit Machine | Impulse | 1998 | Crystal Leisure |
| PC/MS-Windows CD | Incoming | 1998 | Interplay |
| Sega Dreamcast GD | Incoming - The Final Conflict | 1998 | Imagineer Co., Ltd. Japan |
| PC/MS-Windows CD | Incubation - Hidden Worlds | 1998 | Blue Byte Soft. GmbH |
| Video Slot Machine | Indian Dreaming | 1998 | Aristocrat Leisure Industries Pty, Ltd. |
| Sony PlayStation CD |  Indy 500 Model SLES-00135 | 1998 | JVC Music Europe |
| Nintendo Game Boy Cart. | Initial D Gaiden Model DMG-AIDJ-JPN | 1998 | Kodansha Japan |
| PC/MS-Windows CD | Innai Kansen 2 - Naritomanu Nurse Call | 1998 | ZyX Japan |
| Sony PlayStation CD |  Interactive CD Sampler Disc - Vol. 06 Model PBPX-95004 | 1998 | Sony Computer Ent. America SCEA CA, USA |
| Sony PlayStation CD | Interactive CD Sampler Disc - Vol. 07 Model PBPX-95006 | 1998 | Sony Computer Ent. America SCEA CA, USA |
| Sony PlayStation CD | Interactive CD Sampler Disc - Vol. 08 Model PBPX-95009 | 1998 | Sony Computer Ent. America SCEA CA, USA |
| Sony PlayStation CD | Interactive CD Sampler Disc - Vol. 09 Model PBPX-95010 | 1998 | Sony Computer Ent. America SCEA CA, USA |
| PC/MS-Windows CD | International Rally champ | 1998 | T-HQ, Inc. Toy HeadQuarters |
| Nintendo 64 cart. | International Superstar Soccer '98 | 1998 | Konami Co., Ltd. Japan |
| Sony PlayStation CD | International Superstar Soccer Pro '98 demo Model SLED-01401 | 1998 | Konami Co., Ltd. Japan |
| Sony PlayStation CD | International Superstar Soccer Pro '98 demo Model SLED-01513 | 1998 | Konami Co., Ltd. Japan |
| Sony PlayStation CD | International Superstar Soccer Pro '98 Model SCPS-45294 | 1998 | Konami Co., Ltd. Japan |
| Sony PlayStation CD | International Superstar Soccer Pro '98 Model SLES-01218 | 1998 | Konami Co., Ltd. Japan |
| Sony PlayStation CD | International Superstar Soccer Pro '98 Model SLES-01264 | 1998 | Konami Co., Ltd. Japan |
| Sony PlayStation CD | International Superstar Soccer Pro '98 Model SLUS-00674 | 1998 | Konami of America CA, USA |
| Nintendo Game Boy Cart. | International Superstar Soccer Model DMG-AIGE-USA | 1998 | Konami Co., Ltd. Japan |
| Nintendo Game Boy Cart. | International Superstar Soccer Model DMG-AIGP-EUR | 1998 | Konami Co., Ltd. Japan |
| Video Slot Machine | International Toote | 1998 | Coinmaster |
| PC/MS-Windows CD | Interstate '76 Nitro Pack | 1998 | Activision, Inc. Los Angeles, CA, USA 47875 |
| Sony PlayStation CD | Invasion from Beyond Model SLUS-00709 | 1998 | GT Interactive Soft. Corp. NY, USA |
| PC/MS-Windows CD | iPanzer '44 | 1998 | Interactive Magic |
| Pachinko | Iretenanbo Namidanobardy | 1998 | Daiichi Denshi |
| Arcade Video game | Iron Fortress | 1998 | Eolith Co., Ltd. |
| Sony PlayStation CD | Irritating Stick Model SLUS-00775 | 1998 | JALECO USA, Inc. USA |
| PC/MS-Windows CD | Isola LEGO | 1998 | Leader Italy |
| Sony PlayStation CD | Itadaki Street - Gorgeous King Taikenban Model SLPM-86089 | 1998 | Enix, Ltd. Japan |
| Sony PlayStation CD | Itadaki Street - Gorgeous King Model SLPM-86120 | 1998 | Enix, Ltd. Japan |
| Nintendo Game Boy Cart. | Itsudemo! Nyan to Wonderful Model DMG-ACAJ-JPN | 1998 | Banpresto Japan |
| Sony PlayStation CD | Iwatobi Penguin Rocky x Hopper 2 - Tantei Monogatari Model SLPS-01283 | 1998 | Culture Publishers |
| Sony PlayStation CD | Iznogoud Model SLES-00480 | 1998 | Microïds |
| Sega Saturn CD | J. League Jikkyou Honou no Striker | 1998 | Konami Co., Ltd. Japan |
