| Sony PlayStation CD |  Square's Preview 3 Model SLPS-01491 | 1998 | Square Co., Ltd. Japan |
| Sony PlayStation CD | Squaresoft on PlayStation 1998 Collector's CD Vol. 1 Model SLUS-90028 | 1998 | Square Electronic Arts L.L.C. |
| Sony PlayStation CD | Squaresoft on PlayStation 1998 Collector's CD Vol. 2 Model SLUS-90029 | 1998 | Square Electronic Arts L.L.C. |
| Sony PlayStation CD | Squaresoft on PlayStation Collector's CD Model SCUS-94256 | 1998 | Square Electronic Arts L.L.C. |
| Seta Aleck64 cart. |  St. Andrews Old Course | 1998 | Seta Co., Ltd. Japan |
| MSX Turbo-R disk |  Stage 11 Kai Hb | 1998 | Mikasen Japan |
| Arcade Video game |  Stagger I | 1998 | Afega |
| PC/MS-Windows CD | Star Command Deluxe | 1998 | GT Interactive Soft. Corp. NY, USA |
| Colecovision cart. | Star Fortess Hb | 1998 | Classic Game Creations |
| Arcade Video game | Star Gladiator 2 - Nightmare of Bilstein | 1998 | Capcom Co., Ltd. Japan |
| Sony PlayStation CD | Star Monja Model SLPS-01390 | 1998 | GMF |
| Sony PlayStation CD | Star Ocean - The Second Story Model SLPM-86105~7 | 1998 | Enix Corp. |
| Sharp X68000 Series 5.25in. disk | Star Pulse | 1998 | Unknown Japan |
| Seta Aleck64 cart. | Star Soldier - Vanishing Earth | 1998 | Hudson Soft. Hudson Group Japan |
| Nintendo 64 cart. | Star Soldier - Vanishing Earth | 1998 | Electro Brain Corp. |
| Nintendo 64 cart. | Star Soldier - Vanishing Earth Model NUS-NS6J | 1998 | Hudson Soft. Hudson Group Japan |
| PC/MS-Windows CD | Star Trek Pinball | 1998 | Interplay |
| PC/MS-Windows CD | Star Wars - Droid Works | 1998 | LucasArts Ent. Co. |
| Sony PlayStation CD | Star Wars - Masters of Teräs Käsi Model SLES-01111 | 1998 | LucasArts Ent. Co. |
| Sony PlayStation CD | Star Wars - Masters of Teräs Käsi Model SLPS-01464 | 1998 | BPS Bullet-Proof Soft. Japan |
| PC/MS-Windows CD | Star Wars - Rebellion | 1998 | LucasArts Ent. Co. |
| Nintendo 64 cart. | Star Wars - Rogue Squadron | 1998 | Nintendo Co., Ltd. Japan |
| PC/MS-Windows CD | Star Wars - Rogue Squadron | 1998 | LucasArts Ent. Co. |
| Arcade Video game | Star Wars Trilogy Arcade Deluxe model | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Arcade Video game | Star Wars Trilogy Arcade Standard model | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sony PlayStation CD | StarCon | 1998 | Accolade, Inc. San Jose, CA, USA 15605 |
| PC/MS-Windows CD | StarCraft | 1998 | Blizzard Ent., Inc. |
| PC/MS-Windows CD | StarCraft - Brood War | 1998 | Blizzard Ent., Inc. |
| Fruit Machine | Stardust | 1998 | JPM International |
| Sony PlayStation CD | Starlight Scramble - Ren'ai Kouhosei Model SLPS-01407 | 1998 | KSS Media Ent. Co. Japan |
| PC/MS-Windows CD | Starship Titanic | 1998 | Simon & Schuster Interactive |
| PC/MS-Windows CD | Starsiege - Tribes | 1998 | Dynamix Part of the Sierra Family USA 20626 |
| PC/MS-Windows CD | Steady with You | 1998 | DO Corp. Japan |
| Sega Saturn CD | Steam-Heart's | 1998 | TGL Technical Group Laboratory Japan |
| Sony PlayStation CD | Steel Reign Model SCES-01023 | 1998 | Sony Computer Ent. Europe SCEE |
| Sega ST-V cart. | Steep Slope Sliders | 1998 | Capcom Co., Ltd. Japan |
| Sega Saturn CD | Stellar Assault SS | 1998 | SIMS Co., Ltd. Japan |
| Arcade Video game | Stelle e Cubi | 1998 | Sure |
| Slot Machine | Sterling Sevens | 1998 | Universal Co., Ltd Tokyo, Japan |
| PC/MS-Windows CD | Sting | 1998 | OrangesofT Korea |
