| Sony PlayStation CD |  Guilty Gear Model SLUS-00772 | 1998 | Atlus Co., Ltd. CA, USA |
| Arcade Video game |  Gun Gabacho | 1998 | Gaelco S.A. |
| Sony PlayStation CD |  Gunbare! Game Tengoku - The Game Paradise 2 Taikenban Model SLPM-80303 | 1998 | JALECO Co., Ltd. Japan |
| Sony PlayStation CD | Gunbare! Game Tengoku - The Game Paradise 2 Model SLPS-01322 | 1998 | JALECO Co., Ltd. Japan |
| Sony PlayStation CD | Gunbarl Model SLPS-01500 | 1998 | NAMCO, Ltd. Japan |
| Arcade Video game | Gunbird 2 | 1998 | Psikyo |
| Sega Saturn CD | GunBlaze S | 1998 | KID Kindle Imagine Develop |
| Sony PlayStation CD | Gundam - The Battle Master 2 Model SLPS-01286 | 1998 | Bandai Co., Ltd. Japan |
| Sega Saturn CD | Gungriffon II | 1998 | ESP Ent. Soft. Publishing |
| Arcade Video game | Gunmen Wars | 1998 | NAMCO, Ltd. Japan |
| Sony PlayStation CD | Gunnm - Kasei no Kioku Model SLPS-01408 | 1998 | Banpresto Japan |
| PC/MS-Windows CD | GunYuu | 1998 | KOEI Co., Ltd. Japan |
| Sony PlayStation CD | Guy Roux Football Manager - Saison 97-98 Model SLES-01360 | 1998 | UBI Soft Creteil, France 307211 |
| Sony PlayStation CD | Hai-Shin-2 Model SLPM-86066 | 1998 | Aques |
| Sony PlayStation CD |  Hajime no Ippo - The Fighting! Model SLPS-91063 | 1998 | Kodansha Japan |
| Sega Pico game | Hajimema Series 1 - Donald no Obake Taiji Model HPC-6062 | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sony PlayStation CD | Hakaioh - King of Crusher Model SLPS-01677 | 1998 | FAB Communication Co., Ltd. Japan |
| PC/MS-Windows CD | Half-Life | 1998 | Sierra Studios USA |
| Pachislot | Halloween | 1998 | Net Corp. Japan |
| Redemption video game | Hammer Champ | 1998 | NAMCO, Ltd. Japan |
| Arcade Video game | Hana Kagerou Deluxe | 1998 | Dynax, Inc. Nagoya, Japan |
| Pachinko | Hana Man Densetsu | 1998 | Nishijin Japan |
| Pachinko | Hana Miduki 2 | 1998 | Kyoraku Sangyo Japan |
| Pachinko | Hana Miduki 3 | 1998 | Kyoraku Sangyo Japan |
| Sony PlayStation CD | Hana to Ryuu Model SLPS-01532 | 1998 | I'Max Japan |
| Pachislot | Hanabi | 1998 | Universal Co., Ltd Tokyo, Japan |
| Sony PlayStation CD | Hanabi Fantast Demo Model SLPM-80239 | 1998 | Magical Co., Ltd. Japan |
| Sony PlayStation CD | Hanabi Fantast Model SLPS-01439 | 1998 | Magical Co., Ltd. Japan |
| Sony PlayStation CD | Hanafuda Real 3D Model SLPS-01747 | 1998 | Pony Canyon, Inc. Japan |
| Arcade Video game | Hangman | 1998 | JPM International |
| Arcade Video game | Hanguk Pro Yagu 98 | 1998 | Amuse World Corp. Seoul, Korea |
| Slot Machine | Happy | 1998 | ADP Merkur GmbH Gauselmann Group Germany |
| Redemption mechanical game | Happy Genius | 1998 | BMC Bao Ma Technology Co. Korea |
| Sony PlayStation CD | Hard Boiled - Neuro Tower o Hakai Seyo Model SLPS-01484 | 1998 | Siege |
| Sony PlayStation CD | Hard Edge Model SLPS-01733 | 1998 | SUNSOFT Kounan, Japan |
| PC/MS-Windows CD | Hard Truck - Road to Victory | 1998 | 1C Co. Russia |
| Sony PlayStation CD | HardBall '99 Model SLUS-00651 | 1998 | Accolade, Inc. San Jose, CA, USA 15605 |
| PC/MS-Windows CD | Hardwar - The Future Is Greedy | 1998 | Gremlin Interactive, Ltd. 013658 |
| PC/MS-Windows CD | Harmonia Jeongi | 1998 | Woongjin Media Korea |
| Sony PlayStation CD | Haru no BuruBuru Taikenban Model PCPX-96110 | 1998 | Sony Computer Ent., Inc. SCEI Japan |
