| PC/MS-Windows CD |  Soldiers At War | 1998 | Mindscape, Inc. Northbrook, IL, USA 24294 |
| Sega Saturn CD |  Solo Crisis Taiken Sample-ban | 1998 | Quintet |
| Sega Saturn CD | Solo Crisis Model T-23501G | 1998 | Quintet |
| Video Slot Machine | Something For Nothing | 1998 | WMS Gaming, Inc. Chicago, IL, USA |
| Nintendo Game Boy Cart. | Sonic 3D Blast 5 | 1998 | Yong Yong China |
| Nintendo Game Boy Cart. | Sonic 6 | 1998 | Sonic World |
| Sega Dreamcast GD | Sonic Adventure Model HDR-0001 | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Medal game (video) | Sonic Blast Man - Janken Battle | 1998 | Taito Corp. Japan |
| Tiger game.com cart. | Sonic Jam | 1998 | Tiger Electronic Toys, Inc. Orchard Mundelein, IL, USA |
| Sega Saturn CD | Sonic Jam Model GS-9200 | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| PC/MS-Windows CD | Sonic R | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| PC/MS-Windows CD | Sonic R | 1998 | Expert Soft. |
| Nintendo 64 cart. | Sonic Wings Assault Model NUS-NSAJ | 1998 | Video System Co., Ltd. Kyoto, Japan |
| Sega Pico game | Soreike! Anpanman - Anpanman to Kotoba Asobi Model HPC-6071 | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Pico game | Soreike! Anpanman - Anpanman to Tanoshii Drive! Model HPC-6067 | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Sorvice | 1998 | Altron Corp. |
| NEC PC-FX game | Sotsugyou - Graduation Real Model FXNAV602 | 1998 | NEC Avenue, Ltd. Japan |
| Sega Saturn CD | Sotsugyou Album | 1998 | Shogakukan Production |
| Sega Saturn CD | Sotsugyou III - Wedding Bell | 1998 | Shogakukan Production |
| Sony PlayStation CD | Sotsugyou III - Wedding Bell Model SLPS-01332 | 1998 | Shogakukan Production |
| Sony PlayStation CD | Sotsugyou M - Seito Kaichou no Karei naru Inbou Taikenban Model SLPM-80233 | 1998 | Hearty Robin |
| Sony PlayStation CD | Sotsugyou M - Seito Kaichou no Karei naru Inbou Model SLPS-01444~5 | 1998 | Hearty Robin |
| Sony PlayStation CD | Soukaigi Model SLPS-01291~3 | 1998 | Square Co., Ltd. Japan |
| Sony PlayStation CD | Soukoban Basic 2 Model SLPS-01519 | 1998 | Itochu Corp. Japan |
| Sony PlayStation CD | Soukou Kihei Votoms - Lightning Slash Taikenban Model SLPM-80360 | 1998 | Takara Co., Ltd. Japan |
| Sony PlayStation CD | Soukou Kihei Votoms - Uoodo Kummen-hen Model SLPS-01330 | 1998 | Takara Co., Ltd. Japan |
| Sony PlayStation CD | Soukou Kihei Votoms - Uoodo Kummen-hen Model SLPS-01331 | 1998 | Takara Co., Ltd. Japan |
| Amstrad CPC 464 disk | Soul Almighty Hb | 1998 | DBT Production |
| Arcade Video game | Soul Calibur | 1998 | NAMCO, Ltd. Japan |
| Sony PlayStation CD |  Soulmaster Model SLPM-86170 | 1998 | KOEI Co., Ltd. Japan |
| Sony PlayStation CD | Sound Novel Evolution 2: Kamaitachi no Yoru Tokubetsu Hen Model SLPS-01794 | 1998 | Chun Soft |
| Sony PlayStation CD | Souten no Shiroki Kami no Kura - Great Peak Model SCPS-10058 | 1998 | Sony Computer Ent., Inc. SCEI Japan |
| Nintendo 64 cart. | South Park | 1998 | Acclaim Ent., Inc. Glen Cove, NY, USA |
| Sony PlayStation CD | Söldnerschild Special Model SLPS-01319 | 1998 | KOEI Co., Ltd. Japan |
| PC/MS-Windows CD | Space Battles | 1998 | Astral Ent. |
| Arcade Video game | Space Bomber | 1998 | Psikyo |
| PC/MS-Windows CD | Space Bunnies Must Die | 1998 | Take-Two Interactive |
| Nintendo 64 cart. | Space Dynamites Model NUS-NDKJ | 1998 | Vic Tokai Japan |
| IBM PC/AT DOS CD | Space Games Classics 2 Sw | 1998 | BestSellers |
| Sony PlayStation CD | Space Invaders 2000 Model SLPM-86153 | 1998 | Taito Corp. Japan |
