| NEC PC-9801 Series 5.25in. disk |  Disc Station Vol. 10 | 1996 | Compile |
| NEC PC-9801 Series 5.25in. disk | Disk ASCII Tenmon Simulation Program Part 2 | 198? | ASCII Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | Disk Battler | 1992 | ABA Japan |
| NEC PC-9801 Series 5.25in. disk | Disk Bishoujo Daizukan 91 | 1991 | Santa Fe Japan |
| NEC PC-9801 Series 5.25in. disk | Diver's 18 | 1994 | Mink Japan |
| NEC PC-9801 Series 5.25in. disk | DNA | 1987 | Brain Gray Co., Ltd. Japan |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Card League | 1990 | Great Japan |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Pretty League Dai-1-wa: Pink Angels Kiki Ippatsu no Maki | 1994 | Great Japan |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Pretty League Dai-2-wa: Mou Hitotsu no Rival | 1995 | Great Japan |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Pretty League Dai-3-wa: Minami no Umi no Kai no Maki | 1995 | Great Japan |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Pretty League Dai-4-wa: Nanase no Himitsu no Maki | 1995 | Great Japan |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Pretty League Dai-5-wa: Saraba Pink Angels-tachi | 1995 | Great Japan |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Shougakusei 3 | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Shutter Chance | 1989 | Elf Japan |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Shutter Chance Tsuika Data 1 - Joshikou Hen 18 | 1989 | Elf Japan |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Shutter Chance Tsuika Data 2 - Nurse Hen 18 | 1989 | Elf Japan |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Shutter Chance Tsuika Data 3 - Bus Guide Hen | 1989 | Elf Japan |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Vacation - Kirameku Kisetsu no Naka de | 1995 | Cocktail Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Dokkin Minako-sensei 18 | 1988 | Tect House Japan |
| NEC PC-9801 Series 5.25in. disk | Dokuritsu Sensou - Liberty or Death Model KN10481010 | 1993 | KOEI Co., Ltd. Japan |
| NEC PC-9801 Series 5.25in. disk | Doll - Paragon Sex A Doll | 1989 | Heart Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Dome | 1988 | System Sacom Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | Domino Soldier Albion | 1989 | Chaos Japan |
| NEC PC-9801 Series 5.25in. disk | DOOM | 1994 | Imagineer Co., Ltd. Japan |
| NEC PC-9801 Series 5.25in. disk | Doop 18 | 1997 | May-Be Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Door Door Model E-G060 P | 1984 | Enix, Ltd. Japan |
| NEC PC-9801 Series 5.25in. disk | Doppyun Donpisha 18 | 1993 | Peach Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | DOR 18 | 1992 | DO Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | DOR Part 2 18 | 1992 | DO Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | DOR Part 3 18 | 1992 | DO Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | DOR Special Edition '93 18 | 1993 | DO Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | DOR Special Edition Sakigake 18 | 1993 | DO Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | Dori Dor Qizu 7 | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Dori Dor Qizu 8 | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Double Eagle | 1989 | Artdink Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | Doujin Soft Shuusaku Game Collection Tokubetsu-hen | 199? | Shuwa System Trading |
| NEC PC-9801 Series 5.25in. disk | Doujin Soft Shuusaku Game Collection Vol. 1 | 199? | Shuwa System Trading |
| NEC PC-9801 Series 5.25in. disk | Doujin Soft Shuusaku Game Collection Vol. 2 | 199? | Shuwa System Trading |
| NEC PC-9801 Series 5.25in. disk | Doukyuusei 18 | 1992 | Elf Japan |
| NEC PC-9801 Series 5.25in. disk | Doukyuusei 2 | 1995 | Elf Japan |
