| Sharp X68000 Series 5.25in. disk |  Kaizoku | 1993 | ORB Japan |
| Sharp X68000 Series 5.25in. disk | Kamikaze | 19?? | Something Good |
| Sharp X68000 Series 5.25in. disk | Kankyou Soft Shuu | 1993 | Hazama, Kuroo Japan |
| Sharp X68000 Series 5.25in. disk | KareiNaru Jinsei - Minasan no Okage Desu 18 | 1992 | IDES Japan |
| Sharp X68000 Series 5.25in. disk | Karou Densetsu | 1993 | DCS Japan |
| Sharp X68000 Series 5.25in. disk | Karou Densetsu Honban | 1997 | DCS Japan |
| Sharp X68000 Series 5.25in. disk | Karou Densetsu Special | 1993 | DCS Japan |
| Sharp X68000 Series 5.25in. disk | Kateikyoushi Adventure | 19?? | Micro Hage Chabin |
| Sharp X68000 Series 5.25in. disk | Kateikyoushi Adventure 2 | 1989 | Micro Hage Chabin |
| Sharp X68000 Series 5.25in. disk | KawaiSou Monogatari Kanketsuhen | 1988 | Master Piece |
| Sharp X68000 Series 5.25in. disk | Kawarazaki-ke no Ichizoku 18 | 1993 | Silky's Japan |
| Sharp X68000 Series 5.25in. disk | Kax | 1989 | Takashi Imai |
| Sharp X68000 Series 5.25in. disk | Keeper | 1993 | Dempa Shinbunsha Japan |
| Sharp X68000 Series 5.25in. disk | Kensou Sono 4 | 1992 | Zoom Japan |
| Sharp X68000 Series 5.25in. disk | Kera Kera Boshi | 1992 | IDES Japan |
| Sharp X68000 Series 5.25in. disk | Kibun wa Pastel Touch!! | 1990 | Great Japan |
| Sharp X68000 Series 5.25in. disk | Kids - SAP 2nd. File | 1992 | Great Japan |
| Sharp X68000 Series 5.25in. disk | Kikori no Yosaku | 1991 | IJI Team |
| Sharp X68000 Series 5.25in. disk | Kikou Shidan - Panzer Division | 1990 | Artdink Corp. Japan |
| Sharp X68000 Series 5.25in. disk | Kimi Dake ni Ai wo... 18 | 1991 | Game Technopolis Japan |
| Sharp X68000 Series 5.25in. disk | Kindan no Paradise | 1989 | Zenryutsu Japan |
| Sharp X68000 Series 5.25in. disk | King Ou II The Kick Master | 1993 | Dragon Studio |
| Sharp X68000 Series 5.25in. disk | King's Dungeon - The Story of Heroes | 1992 | Soft Plan Co., Ltd. Japan |
| Sharp X68000 Series 5.25in. disk | Kisetsu Hazure no Yousei | 1993 | Unknown Japan |
| Sharp X68000 Series 5.25in. disk | Kishikaisei Taiho Shichimauzo Hyouka Ban | 1992 | Team Phantom |
| Sharp X68000 Series 5.25in. disk | Kiss | 1994 | KOS |
| Sharp X68000 Series 5.25in. disk | Kiss of Murder - Satsui no Seppun Model SJRH-13002 | 1988 | Riverhill Soft. Japan |
| Sharp X68000 Series 5.25in. disk | Kitahei 68K Model GS-071 | 1992 | SPS Japan |
| Sharp X68000 Series 5.25in. disk | Kiwame | 1992 | LOG Japan |
| Sharp X68000 Series 5.25in. disk | Klax | 1990 | Project M |
| Sharp X68000 Series 5.25in. disk | Klax Model ZH-1643 | 1990 | Hudson Soft. Hudson Group Japan |
| Sharp X68000 Series 5.25in. disk | Knight Arena | 1994 | Team Xelf |
| Sharp X68000 Series 5.25in. disk | Knight Arms - The Hyblid Framer | 1989 | Arsys Soft., Inc. Japan |
| Sharp X68000 Series 5.25in. disk | Knight Maker | 1991 | Yamamoto |
| Sharp X68000 Series 5.25in. disk | Ko Net Joker Developer Release | 1998 | Toyoshima |
| Sharp X68000 Series 5.25in. disk | Ko Net Joker Developer Release 2 | 1998 | Toyoshima |
| Sharp X68000 Series 5.25in. disk | Ko-Window Application Shuu 1 | 1991 | Takeru Co. Ltd Japan |
| Sharp X68000 Series 5.25in. disk | Ko-Window Application Shuu 2 | 1992 | Takeru Co. Ltd Japan |
| Sharp X68000 Series 5.25in. disk | Ko-Window Application Shuu 3 | 1992 | Takeru Co. Ltd Japan |
| Sharp X68000 Series 5.25in. disk | Ko-Window Application Shuu 4 | 1993 | Takeru Co. Ltd Japan |
