| Nintendo Game Boy Cart. |  Game de Hakken!! Tamagotchi - Osutchi to Mesutchi Model DMG-AOMJ-JPN | 1998 | Bandai Co., Ltd. Japan |
| Sega Saturn CD | Game de Seishun | 1998 | KID Kindle Imagine Develop |
| PC/MS-Windows CD | Game, Net & Match! | 1998 | Blue Byte Soft. GmbH |
| Commodore Amiga CD | Games Attack | 1998 | APC & TCP |
| Nintendo 64 cart. | Ganbare Goemon - Dero Dero Douchuu Obake Tenkomori Model NUS-NG6J | 1998 | Konami Co., Ltd. Japan |
| Sony PlayStation CD | Ganbare Goemon - Kuru nara Koi! Ayashige Ikka no Kuroi Kage Model SLPM-86155 | 1998 | Konami Co., Ltd. Japan |
| PC/MS-Windows CD | Gangsters | 1998 | Eidos Interactive |
| Sony PlayStation CD | Gangway Monsters Model SLPS-01468 | 1998 | Sony Computer Ent., Inc. SCEI Japan |
| Sony PlayStation CD | Ganso Family Mahjong Model SLPS-01373 | 1998 | Nichibutsu Nihon Bussan Co., Ltd. Osaka, Japan |
| Sony PlayStation CD | Gate Keepers Model SLPS-02246~7 | 1998 | Kadokawa Shoten Japan |
| Arcade Video game | Gauntlet Legends | 1998 | Atari Games Corp. CA, USA |
| PC/MS-Windows CD | Geisters | 1998 | HiCom Korea |
| Sony PlayStation CD |  Gekisou Tomarunner Taikenban Model PCPX-96164 | 1998 | Sony Computer Ent., Inc. SCEI Japan |
| Sony PlayStation CD |  Gekisou!! Grand Racing - Total Drivin' Model SLPS-01346 | 1998 | Atlus Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Gekitou Power Modeller Model DMG-APZJ-JPN | 1998 | Capcom Co., Ltd. Japan |
| Commodore Amiga CD | Genetic Species | 1998 | Vulcan Soft. |
| Video Slot Machine | Genius 6 | 1998 | IGS Co., Ltd. International Game System |
| Nintendo Super Famicom cart. | Genjuu Ryodan Model SHVC-BGJJ-JPN | 1998 | Axela |
| Sony PlayStation CD | Gensou Suikoden II Taikenban Model SLPM-80347 | 1998 | Konami Co., Ltd. Japan |
| Sony PlayStation CD | Gensou Suikoden II Model SLPM-86168 | 1998 | Konami Co., Ltd. Japan |
| Sega Saturn CD | Gensou Suikoden Model T-9525G | 1998 | Konami Co., Ltd. Japan |
| Sony PlayStation CD | Geometry Duel Model SLPS-01575 | 1998 | Takara Co., Ltd. Japan |
| Slot Machine | Georges Wild | 1998 | Powerhouse Technologies |
| PC/MS-Windows CD | Get Medieval | 1998 | CDV Soft. Ent. USA, Inc. |
| Commodore Amiga 500 disk | Get Out | 1998 | Unknown |
| Nintendo 64 cart. | Getter Love!! Cho Renai Party Game Model NUS-NGLJ | 1998 | Hudson Soft. Hudson Group Japan |
| PC/MS-Windows CD | Gex - Enter The Gecko | 1998 | Midway Home Ent. |
| Nintendo Game Boy Color cart. | Gex - Enter the Gecko Model DMG-AEXE-USA | 1998 | Crave Ent., Inc. |
| Nintendo Game Boy Color cart. | Gex - Enter the Gecko Model DMG-AEXP-EUR | 1998 | Crave Ent., Inc. |
| Sony PlayStation CD | Gex - Enter the Gecko Model SLUS-00598 | 1998 | Crystal Dynamics |
| Nintendo 64 cart. | Gex 3 - Deep Cover Gecko | 1998 | Crave Ent., Inc. |
| Sony PlayStation CD | Gex 3D - Return of the Gecko Model SLES-00596 | 1998 | Crystal Dynamics |
| Nintendo 64 cart. | Gex 64 - Enter the Gecko Model NUS-NX2E-USA | 1998 | Midway Home Ent. |
| Sony PlayStation CD | Ghost in the Shell Model SCES-01050 | 1998 | Sony Computer Ent. Europe SCEE |
| Sony PlayStation CD | Ghost in the Shell Model SCES-01074 | 1998 | Sony Computer Ent. Europe SCEE |
| Sony PlayStation CD | Ghost in the Shell Model SCES-01075 | 1998 | Sony Computer Ent. Europe SCEE |
| Medal video game | GI-Classic EX | 1998 | Konami Co., Ltd. Japan |
| Medal video game | GI-Classic Winds EX | 1998 | Konami Co., Ltd. Japan |
| Commodore C64 disk | Giga Boulder 2 Hb | 1998 | Roth, Olaf |
| Commodore C64 disk | Giga Boulder 3 Hb | 1998 | Roth, Olaf |
