| Sega Saturn CD |  Flash Sega Saturn Vol. 28 | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Flash Sega Saturn Vol. 29 | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Flash Sega Saturn Vol. 30 | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Flash Sega Saturn Vol. 31 | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD |  Galaxy Force II Sega Ages Model GS-9197 P | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Gambler Jikochuushinha - Tokyo Mahjongland Satakore | 1998 | Game Arts Co., Ltd. Japan |
| Sega Saturn CD | Game Basic for SegaSaturn Model T-2111G | 1998 | ASCII Corp. Japan |
| Sega Saturn CD | Game de Seishun | 1998 | KID Kindle Imagine Develop |
| Sega Saturn CD | Gensou Suikoden Model T-9525G | 1998 | Konami Co., Ltd. Japan |
| Sega Saturn CD | Girl Doll Toy - Tamashii wo Kudasai | 1998 | Xuse |
| Sega Saturn CD | Grandia - Digital Museum | 1998 | Game Arts Co., Ltd. Japan |
| Sega Saturn CD | GT 24 | 1998 | JALECO Co., Ltd. Japan |
| Sega Saturn CD | Guardian Force Model T-9905G | 1998 | Success Japan |
| Sega Saturn CD | GunBlaze S | 1998 | KID Kindle Imagine Develop |
| Sega Saturn CD | Gungriffon II | 1998 | ESP Ent. Soft. Publishing |
| Sega Saturn CD | Hatsukoi Monogatari | 1998 | Tokuma Shoten Intermedia, Inc. Japan |
| Sega Saturn CD |  Hexen - Beyond Heretic Model T-18612G | 1998 | GameBank |
| Sega Saturn CD | Hexen Model T-25405H-50 | 1998 | GT Interactive Soft. Corp. NY, USA |
| Sega Saturn CD | High School Terra Story | 1998 | KID Kindle Imagine Develop |
| Sega Saturn CD | Himitsu Sentai Metamor V | 1998 | MYCOM Japan |
| Sega Saturn CD | Honkaku Hanafuda Model T-16611G | 1998 | Altron Corp. |
| Sega Saturn CD | Honkaku Shougi Shinan Wakamatsu Shougi Jyuku | 1998 | SIMS Co., Ltd. Japan |
| Sega Saturn CD | Houkago Renai Club - Koi no Etude | 1998 | KID Kindle Imagine Develop |
| Sega Saturn CD | Houkago Renai Club - Koi no Etude Genteiban | 1998 | KID Kindle Imagine Develop |
| Sega Saturn CD | I Love Mickey Mouse - Fushigi no Oshiro Daibouken & I Love Donald Duck - Georgia Ou no Hihou Sega Ages | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Idol Janshi Suchie-Pai Mecha Genteiban - Hatsubai 5 Shuunen Toku Package Model T-5716G | 1998 | JALECO Co., Ltd. Japan |
| Sega Saturn CD | Idol Mahjong Final Romance 4 | 1998 | Video System Co., Ltd. Kyoto, Japan |
| Sega Saturn CD | J. League Jikkyou Honou no Striker | 1998 | Konami Co., Ltd. Japan |
| Sega Saturn CD | Jung Rhythm | 1998 | Altron Corp. |
| Sega Saturn CD | Jungle Park - Saturn Shima Model T-18008G | 1998 | BMG Japan, Inc. Japan |
| Sega Saturn CD | Jungle Park - Saturn Shima Model T-18009G | 1998 | BMG Japan, Inc. Japan |
| Sega Saturn CD | Keriotosse! | 1998 | Masudaya Corp. Japan |
| Sega Saturn CD | Kidou Senkan Nadesico - The Blank of 3 Years | 1998 | SEGA Enterprises, Ltd. Tokyo, Japan |
| Sega Saturn CD | Kidou Senshi Gundam - Gihren no Yabou - Kouryaku Shireisho Model T-13333G | 1998 | Bandai Co., Ltd. Japan |
| Sega Saturn CD | Kidou Senshi Gundam - Gihren no Yabou Model T-13327G | 1998 | Bandai Co., Ltd. Japan |
| Sega Saturn CD | Kidou Senshi Gundam - Gihren no Yabou Model T-13330G | 1998 | Bandai Co., Ltd. Japan |
| Sega Saturn CD | Kindaichi Shounen no Jikenbo - Hoshimitou Kanashimi no Fukushuuki | 1998 | Hudson Soft. Hudson Group Japan |
| Sega Saturn CD | Kochira Katsushikaku Kameari Kouenmae Hashutsujo Nakagawa Land Dai Race! no Maki Model T-13332G | 1998 | Bandai Co., Ltd. Japan |
| Sega Saturn CD | Koden Koureijjyutsu Hyaku Monogatari - Hontoni Atta Kowai Hanashi Satakore | 1998 | Hudson Soft. Hudson Group Japan |
| Sega Saturn CD |  Koei Best Collection: Taikou Risshiden II Model T-7667G | 1998 | KOEI Co., Ltd. Japan |
