| NEC PC-9801 Series 5.25in. disk |  Can Can Bunny 2 - Superior | 1990 | Cocktail Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Can Can Bunny Superior | 1990 | Cocktail Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Caroll | 1990 | System House Oh! Japan |
| NEC PC-9801 Series 5.25in. disk | Crimson III | 1990 | Xtal Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Crystal Dream II - Maou no Genei | 1990 | Striker Japan |
| NEC PC-9801 Series 5.25in. disk | D - Oushuu Shinkirou | 1990 | Wolf Team Japan |
| NEC PC-9801 Series 5.25in. disk | D-Again - The 4th Unit 5 | 1990 | Data West, Inc. Japan |
| NEC PC-9801 Series 5.25in. disk | D.P.S. SG - Dream Program System SG 18 | 1990 | Alicesoft Japan |
| NEC PC-9801 Series 5.25in. disk | Daikairei - Make Kit Scenario D-E | 1990 | Artdink Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | Daikairei - Make Kit Scenario F-G | 1990 | Artdink Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | Daikairei - Nankai no Shitou: Philippines Oki Kaisen + Java Tou Kessen | 1990 | Artdink Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | Daikoukai Jidai Model KN10040020 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-9801 Series 5.25in. disk | Daikoukai Jidai Model KN10071010 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-9801 Series 5.25in. disk | Daisenryaku III '90 | 1990 | SystemSoft Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | Daisenryaku III - Great Commander: Map Data Shuu -Sekai Gekitou-hen | 1990 | ABA Japan |
| NEC PC-9801 Series 5.25in. disk | Daisenryaku III - Kakuchou Editor Disk | 1990 | Takeru Co. Ltd Japan |
| NEC PC-9801 Series 5.25in. disk | Dennou Gakuen - Cybernetic Hi-School | 1990 | Gainax Japan |
| NEC PC-9801 Series 5.25in. disk | Dennou Gakuen 3 - Top wo Nerae! Model NHGX-14003 | 1990 | Gainax Japan |
| NEC PC-9801 Series 5.25in. disk | Dennou Shougi II - Eisei Meijin Model RA604 | 1990 | Konami Industry Co., Ltd. Japan |
| NEC PC-9801 Series 5.25in. disk | Disc Station 98 #0 - Soukan Junbi-gou | 1990 | Compile |
| NEC PC-9801 Series 5.25in. disk | Disc Station 98 #01 - Soukan-gou | 1990 | Compile |
| NEC PC-9801 Series 5.25in. disk | Doki Doki Card League | 1990 | Great Japan |
| NEC PC-9801 Series 5.25in. disk | Dragon Slayer - Eiyuu Densetsu Model NFNW14010 | 1990 | Falcom Nihon Falcom Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | Dragon Wars Model SCF03NEF54 | 1990 | Starcraft, Inc. Japan |
| NEC PC-9801 Series 5.25in. disk | Duel | 1990 | KSK Kure Soft. Koubou Japan |
| NEC PC-9801 Series 5.25in. disk | Dungeon Buster 18 | 1990 | Great Japan |
| NEC PC-9801 Series 5.25in. disk | Dungeon Master Model R-5129~30 | 1990 | Victor Musical Industries, Inc. Japan |
| NEC PC-9801 Series 5.25in. disk | Eikan wa Kimi ni - Koukou Yakyuu Zenkoku Taikai | 1990 | Artdink Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | Emerald Densetsu | 1990 | System House Oh! Japan |
| NEC PC-9801 Series 5.25in. disk | Exterlien 18 | 1990 | DO Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | F-15 Strike Eagle II | 1990 | MicroProse Japan K.K. |
| NEC PC-9801 Series 5.25in. disk | Falcom Character CG | 1990 | Takeru Co. Ltd Japan |
| NEC PC-9801 Series 5.25in. disk | First Queen II - Sabaku no Joou | 1990 | KSK Kure Soft. Koubou Japan |
| NEC PC-9801 Series 5.25in. disk | Flappy Plus Model N04-G2126-L1-1-1 | 1990 | DB-SOFT Japan |
| NEC PC-9801 Series 5.25in. disk | Foxy 18 | 1990 | Elf Japan |
| NEC PC-9801 Series 5.25in. disk | Fundation - Shinjuku Story | 1990 | Dot Kikaku Japan |
| NEC PC-9801 Series 5.25in. disk | Gilgamesh Sorcerian | 1990 | Brother Kougyou Japan |
| NEC PC-9801 Series 5.25in. disk | Ginga Eiyuu Densetsu II | 1990 | Bothtec, Inc. Japan |
| NEC PC-9801 Series 5.25in. disk | Gokuraku Tengoku - Omemie no Maki | 1990 | Shinjitsu Pro |
| NEC PC-9801 Series 5.25in. disk | Grand Prix Circus | 1990 | WestSide Softhouse Japan |
