| Sony PlayStation CD |  Sakuma-shiki Jinsei Game Model SLPS-01740 | 1998 | Takara Co., Ltd. Japan |
| Sega Saturn CD | Sakura Taisen - Teigeki Graph | 1998 | SIMS Co., Ltd. Japan |
| Sega Saturn CD | Sakura Taisen 2 - Kimi, Shini Tamou Kotonakare Tokubetsu-ban | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Sakura Taisen 2 - Kimi, Shini Tamou Kotonakare Model GS-9169 | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Sakura Taisen 2 - Kimi, Shini Tamou Kotonakare Model GS-9198 | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Sakura Taisen Satakore | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Sakura Tsuushin | 1998 | Media Gallop Japan |
| PC/MS-Windows CD | Samgukji Cheonmyeong | 1998 | Dong Seo Game Channel Korea |
| Sony PlayStation CD | Samurai Spirits - Kenkaku Yubinan Pack Model SLPS-00647 | 1998 | SNK Corp. Shin Nihon Kikaku Japan |
| SNK Hyper NeoGeo 64 cart. | Samurai Spirits 2 - Asura Zanmaden | 1998 | SNK Corp. Shin Nihon Kikaku Japan |
| Sega Saturn CD | Samurai Spirits Best Collection Model T-3123G | 1998 | SNK Corp. Shin Nihon Kikaku Japan |
| SNK Neo-Geo Pocket cart. | Samurai Spirits! Model NEOP00080 | 1998 | SNK Corp. Shin Nihon Kikaku Japan |
| SNK Neo-Geo Pocket cart. | Samurai Spirits! Model NEOP90010 | 1998 | SNK Corp. Shin Nihon Kikaku Japan |
| Sony PlayStation CD |  San Francisco Rush - Extreme Racing Model SLES-01208 | 1998 | GT Interactive Soft. Corp. NY, USA |
| Sony PlayStation CD | San Francisco Rush - Extreme Racing Model SLUS-00505 | 1998 | Midway Home Ent. |
| Sony PlayStation CD |  Sangoku Musou Model SLPM-86151 | 1998 | KOEI Co., Ltd. Japan |
| Sony PlayStation CD | Sangokushi II Model SLPS-01596 | 1998 | KOEI Co., Ltd. Japan |
| Sony PlayStation CD | Sangokushi VI Model SLPM-86129 | 1998 | KOEI Co., Ltd. Japan |
| Sony PlayStation CD | Sanguozhi V Model SCPS-45128 | 1998 | KOEI Co., Ltd. Japan |
| PC/MS-Windows CD | Sanitarium | 1998 | ASC Games |
| Sony PlayStation CD | SanKore Best: Mahjong Station MAZIN Model SLPS-01564 | 1998 | SUNSOFT Kounan, Japan |
| Sony PlayStation CD | Sankyo Fever - Jikki Simulation Vol.3 Model SLPS-01393 | 1998 | TEN Institute |
| Sega Saturn CD | Sankyo Fever Jikki Simulation S Vol. 2 | 1998 | TEN Institute |
| Sega Saturn CD | Sankyo Fever Jikki Simulation S Vol. 3 | 1998 | TEN Institute |
| Nintendo Game Boy Color cart. | Sanrio Timenet - Kako-Hen Model DMG-ATPJ-JPN | 1998 | Imagineer Co., Ltd. Japan |
| Nintendo Game Boy Color cart. | Sanrio Timenet - Mirai-Hen Model DMG-ATFJ-JPN | 1998 | Imagineer Co., Ltd. Japan |
| Sega Saturn CD | Satakore: 2do Arukotoha Sand-R Model T-6804G | 1998 | CRI CSK Research Institute Japan |
| Fruit Machine | Satellite Special Edition Model 1052 | 1998 | ELAM Group Veldhoven, Netherlands |
| Sony PlayStation CD | SatelliTV Model SLPS-01203 | 1998 | Nippon Ichi Soft., Inc. Japan |
| Sega Saturn CD | Saturn Collection: Fighting Illusion - K-1 Grand Prix Shou Model T-26113G | 1998 | Xing Ent. Japan |
| Sega Saturn CD |  Saturn Power No.5: WipEout 2097 Demo | 1998 | Future Publishing, Ltd. UK |
| Sega Saturn CD | Savaki | 1998 | Micro Cabin Co. Japan |
| Nintendo Game Boy Cart. | Schiffe Versenken Model DMG-AB8D-NOE | 1998 | Infogrames Distribution 014762 |
| Sony PlayStation CD | Science Is Elementary 1 Model LSP-99016101 | 1998 | Lightspan Partnership, The |
| Sony PlayStation CD | Science Is Elementary 2 Model LSP-99016102 | 1998 | Lightspan Partnership, The |
| Sony PlayStation CD | Science Is Elementary 3 Model LSP-99016103 | 1998 | Lightspan Partnership, The |
| PC/MS-Windows CD | Scotland Yard | 1998 | Cryo Interactive Ent. |
| PC/MS-Windows CD | Scudetto 97/98 | 1998 | Eidos Interactive |
| Sony PlayStation CD | SD Gundam - G Generation Model SLPS-01560~1 | 1998 | Bandai Co., Ltd. Japan |
| Sega Saturn CD | SD Gundam G Century S | 1998 | Bandai Co., Ltd. Japan |
