| title | developer | year | platform | | pop. |
|---|
| I Love Science! | DK Multimedia | 1997 | Mac OS Classic | edutainment | | | label | |
| I Love Science! | DK Multimedia | 1997 | Win3.1 | edutainment | | | label | |
| I Rescued Elvis from Communist Alien Jerks! | author | 1994 | Amiga | adventure Science Fiction | | | label | |
| I Spy | Black Hammer Productions | 1998 | Mac OS Classic | edutainment | | | label | |
| I Spy | Black Hammer Productions | 1998 | Win3.1 | edutainment | | | label | |
| If It Please the Court | Heart's Choice | 2021 | Linux | adventure role-play | | | label | |
| Ignition | Unique Development Studios | 2015 | Linux | | | | label | |
| Immortus Temporus | Khud0 | 2021 | Linux | | | | label | |
| Impatience | Fred | 1992 | SAM | puzzle | | | label | |
| Imperialism II: Age of Exploration | Frog City Software | 1999 | Windows | strategy turn-based Historical | | | label | |
| Imperialism II: Age of Exploration | Frog City Software | 1999 | Mac OS Classic | strategy turn-based Historical | image | | label | |
| In Grandma's Attic | Interlynx Multimedia | 1996 | Windows | edutainment | | | label | |
| In Grandma's Attic | Interlynx Multimedia | 1996 | Win3.1 | edutainment | | | label | |
| In Grandma's Attic | Interlynx Multimedia | 1996 | Mac OS Classic | edutainment | image | | label | |
| Indiana Jones and the Last Crusade: The Graphic Adventure | Lucasfilm Games | 1989 | MS-DOS | adventure | image | subject | label | |
| Indiana Jones and the Last Crusade: The Graphic Adventure | Lucasfilm Games | 1989 | Amiga | adventure | image | subject | label | |
| Indiana Jones and the Last Crusade: The Graphic Adventure | Lucasfilm Games | 1989 | Atari ST | adventure | image | subject | label | |
| Indiana Jones and the Last Crusade: The Graphic Adventure | Lucasfilm Games | 1990 | Mac OS Classic | adventure | image | | label | |
| Influent | author | 2014 | Linux | simulation strategy edutainment | | subject | label | |
| Influent | author | 2014 | Mac OS X | simulation strategy edutainment | | | label | |
| Inline | Light Bringer Games | 2018 | Linux | puzzle | | | label | |
| InMind 2 VR | Nival | 2017 | Linux | edutainment Science Fiction | | | label | |
| Innocent Until Caught | Divide By Zero | 1993 | MS-DOS | adventure Science Fiction | image | | label | |
| Intelligent Design | author | 2016 | Linux | simulation manag./econ. Science Fiction | | | label | |
| Interactive Math Journey | The Learning Company | 1996 | Mac OS Classic | edutainment | image | | label | |
| Interactive Math Journey | The Learning Company | 1996 | Win3.1 | edutainment | | | label | |
| International Open Golf Championship | RISC | 1993 | MS-DOS | sport | | | label | |
| Invaders | author | 1982 | Xerox Alto | shooter Science Fiction | | | label | |
| Ishar 2: Messengers of Doom | Silmarils | 1993 | Amiga | role-play Fantasy | image | | label | |
| Ishar 2: Messengers of Doom | Silmarils | 1993 | Atari ST | role-play Fantasy | | | label | |
| Ishar 2: Messengers of Doom | Silmarils | 1993 | MS-DOS | role-play Fantasy | image | | label | |
| Ishar III: The Seven Gates of Infinity | Silmarils | 1994 | Atari ST | role-play Fantasy | | | label | |
| Isle of the Dead | Rainmaker Software | 1993 | MS-DOS | action/reflex shooter adventure | image | subject | label | |
| Isles of Derek: The Sequel to Nacah | Virtue Games | 2003 | Windows | adventure | | | label | |
| IsoCubes | NanningsGames | 2021 | Linux | puzzle | | | label | |
| It's Zoro's Birthday! | DarkChibiShadow | 2016 | Linux | adventure | | | label | |
