| title | developer | year | platform | | pop. |
|---|
| I Shall Remain | ? | 2012 | Windows | shooter role-play Horror | | | label | |
| I Shall Remain | Scorpion Games | 2014 | Linux | shooter role-play Horror | | | label | |
| Icewind Dale: Enhanced Edition | Overhaul Games | 2014 | Linux | adventure role-play Fantasy | | | label | |
| Immortal Empire | Tactic Studios | 2013 | Linux | strategy role-play Fantasy | | | label | |
| Immortal Empire | Tactic Studios | 2015 | Windows | strategy role-play turn-based Fantasy | | | label | |
| Immortal Empire | Tactic Studios | 2013 | Internet Only | strategy role-play turn-based Fantasy | | | label | |
| In Exilium | Conflux Games | 2014 | Linux | role-play Fantasy | | | label | |
| Indie Assault | Imagination Vent | 2015 | Windows | fighting | | | label | |
| Inquisitor | Wooden Dragon | 2006 | Windows | role-play Fantasy | image | | label | |
| Inquisitor: Shade of Swords | Chip | 1988 | Amstrad CPC | role-play Fantasy | image | | label | |
| Insanity's Blade: The Chronicles of Thurstan | Causalbit Games | 2014 | Linux | platformer Fantasy | | subject | label | |
| Interhack | author | 2000 | Linux | role-play turn-based | | | label | |
| Iron Grip: Warlord | Isotx | 2008 | Windows | shooter strategy Science Fiction | image | subject | label | |
| Island Forge | Potential Games | 2012 | Linux | role-play | | subject | label | |
| Isometric RPG | My Game Company | 2016 | Linux | role-play turn-based Fantasy | image | | label | |
| İstanbul Efsaneleri | SiliconWorx | 2005 | Linux | role-play Fantasy | | subject | label | |
| Ittle Dew | Ludosity | 2013 | Linux | adventure | | | label | |
| Ittle Dew | Ludosity | 2013 | Mac OS X | adventure Cartoon | | | label | |
| Ittle Dew | Ludosity | 2013 | Windows | adventure Cartoon | image | | label | |
| Ittle Dew | Ludosity | ? | Ouya | adventure | | | label | |
| Ittle Dew 2 | Ludosity | 2016 | Linux | adventure Fantasy | | | label | |
