| title | developer | year | game type | | pop. |
|---|
| Idol Project | KSS | 1994 | NEC PC9801 | role-play | image | | | |
| Idol Project 2 | KSS | 1995 | NEC PC9801 | adventure | image | | label | |
| If | Active | 1993 | NEC PC9801 | adventure Manga | image | | label | |
| If 2 | Active | 1993 | NEC PC9801 | adventure Manga | image | | label | |
| If 3 | Active | 1995 | NEC PC9801 | adventure Manga | image | | label | |
| Igo 2 | Ascii | 1989 | NEC PC9801 | board game | image | | label | |
| Igo 3 | Ascii | 1991 | NEC PC9801 | board game | image | | label | |
| Igo Seiten | Home Data | ? | NEC PC9801 | board game | image | | label | |
| Ikazuchi no Senshi Raidi | ZYX | 1994 | NEC PC9801 | role-play Manga | image | | label | |
| Ikazuchi no Senshi Raidi 2 | ZYX | 1995 | NEC PC9801 | role-play Manga | image | | label | |
| Ikenie - Kyouraku no Shinden | Cat's Pro | 1995 | NEC PC9801 | adventure Manga | image | | | |
| Illumina | Cocktail Soft | 1990 | NEC PC9801 | role-play | image | | | |
| Imadoki Junjou Monogatari | Allot | ? | NEC PC9801 | adventure Manga | image | | | |
| Image Club Banana Room | XYZ | ? | NEC PC9801 | adventure Manga | image | | | |
| Immoral Study | Scoop Software | 1995 | NEC PC9801 | adventure Manga | image | | label | |
| Immoral Study 2 | Scoop Software | 1995 | NEC PC9801 | adventure Manga | image | | label | |
| Immoral Study 3 | Scoop Software | 1995 | NEC PC9801 | adventure Manga | image | | label | |
| Imperial Force | System Soft | ? | NEC PC9801 | | image | | | |
| Inherit the Earth: Quest for the Orb | The Dreamers Guild | 1995 | NEC PC9801 | adventure Fantasy | image | | label | |
| Inindo | Koei | ? | NEC PC9801 | role-play | image | | | |
| Injiu Genmu | Ringer Bell | 1993 | NEC PC9801 | trivia/quiz Manga | image | | label | |
| Injiu Genmu 2 - Brain Burst | Ringer Bell | 1994 | NEC PC9801 | trivia/quiz Manga | image | | | |
| Inju no Datenshi - Requiem for Fallen Angels | Discovery Software | 1996 | NEC PC9801 | adventure Manga | image | | | |
| Injuu Gakuen - La Blue Girl | Dez Climax | 1996 | NEC PC9801 | adventure Manga | image | | label | |
| Inma Seifuku Kari | Ail | 1995 | NEC PC9801 | adventure Manga | image | | label | |
| Innocent Tour | KSS | 1996 | NEC PC9801 | role-play Manga | image | subject | | |
| Insiders | Ascii | ? | NEC PC9801 | | image | | | |
| Insiders Network no Boken | Ascii | 1993 | NEC PC9801 | role-play | image | | | |
| Instant Clarity | Neko no Kessha | 1996 | NEC PC9801 | adventure | image | | label | |
| Intellectual Pretty Soldier Kaltomoon | A.B.I soft | ? | NEC PC9801 | puzzle | image | | | |
| Intruder | Alice Soft | ? | NEC PC9801 | adventure Manga | image | | | |
| Ippatsu Jang! | May-Be Soft | 1995 | NEC PC9801 | | image | | label | |
| Iris Serenade | Agumix | 1992 | NEC PC9801 | adventure Manga | image | | | |
| Irium | Orange House | 1993 | NEC PC9801 | role-play Manga | image | | | |
| Isaku | Elf | 1995 | NEC PC9801 | adventure Manga | image | subject | label | |
| Ishido: The Way of Stones | ASCII | 1990 | NEC PC9801 | puzzle | image | | label | |
| Ishin Kaikoku | Imagineer | ? | NEC PC9801 | simulation strategy | image | | | |
| Ishin no Arashi | Koei | 1988 | NEC PC9801 | strategy Historical | image | | label | |
| It's hard. | Hikware | 1996 | NEC PC9801 | trivia/quiz | image | | | |
