| title | developer | year | platform | | pop. |
|---|
| IBM PC Wheel of Fortune | author | 1984 | MS-DOS | trivia/quiz | image | | label | |
| Idaho Squares | Victory Software | 1985 | Coleco Adam | edutainment | | | label | |
| Identifying Matching Letters | Centurion Software | 1984 | Apple II E | edutainment | | | label | |
| Identifying Vowel Sounds | Centurion Software | 1984 | Apple II E | edutainment | | | label | |
| Ikari Warriors | Quicksilver Software | 1987 | MS-DOS | shooter | image | subject | label | |
| Imhotep | Softside | 1980 | Apple II E | | | subject | label | |
| Imhotep | UpTime | ? | Apple II E | manag./econ. | | | label | |
| Impulse | author | 2013 | Linux | action/reflex shooter rhythm | | subject | label | |
| Incursion | Cube Noir | 2012 | Linux | adventure Fantasy | | | label | |
| Incursion | Julian Mensch | 2007 | Linux | role-play Fantasy | | | label | |
| Indiana Jones and the Fate of Atlantis | LucasArts | 1992 | MS-DOS | adventure | image | | label | |
| Indiana Jones and the Fate of Atlantis | Attention to Detail Limited | 1992 | MS-DOS | action/reflex adventure | | | label | |
| Induction | author | 2016 | Linux | puzzle | | | label | |
| Induction | author | 2014 | Linux | puzzle Science Fiction | | | label | |
| Inferno | Williams | 1985 | Arcade | maze | image | subject | label | |
| Inferno | Meadows Games | 1977 | Arcade | action/reflex | image | subject | label | |
| Infiltration | SentryStudios | 1998 | Linux | shooter | | | label | |
| Infiltration | Metal Demon | ? | Linux | shooter | | | label | |
| Inhumane | Infralogic;Infocom | 1984 | Apple II E | adventure | | | label | |
| InitialDREAM | dsheemstra | 2017 | Linux | | | | label | |
| Insurgency | New World Interactive | 2014 | Windows | shooter | image | | label | |
| INSURGENCY: Modern Infantry Combat | Insurgency Team | 2007 | Windows | shooter | image | | label | |
| Internet Go | ? | 2004 | BeOS | board game turn-based | | | label | |
| Interstellar Flames | Xen Games | 2004 | Palm | shooter | | | label | |
| Interstellar Flames | Xen Games | 2004 | Palm | shooter | | | label | |
| Invaders | Digital Research | 1978 | DEC PDP-1 | shooter Science Fiction | | | label | |
| Invaders | Premier Publications | 1981 | Ohio Scientific | shooter Science Fiction | | | label | |
| Invaders | ? | ? | Ohio Scientific | maze | | | label | |
| Invaders | Keypunch Software | ? | Apple II E | | | | label | |
| Io-Miner | Softside | 1983 | TRS-80 | action/reflex maze | | | label | |
| Iron Sky: Operation Highjump | Game Studios IGIOS;LudoCraft | 2011 | Linux | action/reflex Humorous | | subject | label | |
| Isaac Newton / Full Graphics Newton | Krell Software | 1981 | Apple II E | edutainment | | | label | |
| Isaac Newton / Full Graphics Newton | Krell Software | 1981 | TRS-80 | edutainment | | | label | |
| Ishido | Fraggle | 1991 | Amstrad CPC | puzzle | image | | label | |
| Ishido | Arkos | 2005 | Amstrad CPC | puzzle | image | subject | label | |
| Island | Rainbow | 1985 | Tandy Coco | adventure | | | label | |
| It's About Time | McCarthy-McCormack | 1983 | Apple II E | edutainment | | | label | |
| It's About Time | SoftSide | 1983 | Apple II E | adventure | | | label | |
| It's About Time | Micrograms | 1987 | Apple II E | edutainment | | | label | |
| ITEP Chess Program | Institute of Theoretical and Experimental Physics | 1963 | custom | board game turn-based | image | subject | label | |
| Iznogoud | Microïds | 1996 | MS-DOS | platformer Cartoon | | | label | |
| Iznogoud | Infogrames | 1987 | MS-DOS | maze adventure | image | | label | |
