| Ian Martin | Developer | |
| Ian McArdle | Developer | |
| Ian McEachern | Developer | |
| Ian Morgan | Developer | |
| Ian Morrison | Developer | |
| Ian Obst | Developer | |
| Ian Oliver | Developer | |
| Ian Piumarta | Developer | |
| Ian Porter | Developer | |
| Ian Richards | Developer | |
| Ian Schiffman | Developer | |
| Ian Sheridan | Developer | |
| Ian Smith | Developer | |
| Ian Spadin | Developer | |
| Ian Upton | Developer | |
| Ian Weatherburn | Developer | |
| IanGoGo | Developer | |
| IanGraven | Developer | |
| IanHinck | Developer | |
| IanJeannin | Developer | |
| IanLux | Developer | |
| IanPeter | Developer | |
| Iancu Makes Games Alone | Developer | |
| Ianky | Developer | |
| Iarukalb | Developer | |
| Iber Soft | DeveloperPublisher | |
| Iber Software | Publisher | |
| Ibid Inc. Software | Developer | |
| Ibispi | Developer | |
| Ibn | Developer | |
| Ibrahem Abassi | Developer | |
| Ibrahim | Developer | |
| Ibrahim Jr. | Developer | |
| Ibrahim Kaya | Developer | |
| Ibrahim Khorakiwala | Developer | |
| IbrahimFalih | Developer | |
| Icaro Ferracini | Developer | |
| IcarusIrving | Developer | |
| IcaruzGames | Developer | |
| Ice Beam | Developer | |
| Ice Cool Coders (Chris Pile, Balor Knight, Stephen Corry) | Developer | |
| Ice Flames | Developer | |
| Ice Phoenix Studios. | Developer | |
| Ice Pixel Games | Developer | |
| Ice Queen Studio | Developer | |
| Ice Water Games | DeveloperPublisher | |
| Ice-Pick Lodge | DeveloperPublisher | |
| IceBox246 | Developer | |
| IceDev | Developer | |
| IceKalt | Developer | |