| ISCO Inc | Developer | |
| ISK games | Developer | |
| ISNI | Developer | |
| ISplit | Developer | |
| IT Territory | Publisher | |
| ITBOMB studios | Developer | |
| ITDA | Developer | |
| ITE Media | DeveloperPublisher | |
| ITL | Developer | |
| ITL Co. | Developer | |
| ITL Co., Ltd. | Developer | |
| ITZ_WAX | Developer | |
| ITZmohammedX151 | Developer | |
| ITkweens | Developer | |
| IUDAV 1st year students | Developer | |
| IUG | Developer | |
| IV | Developer | |
| IVA1 | Developer | |
| IVIA | Developer | |
| IVP Productions | Developer | |
| IYG+REV+TAK | Developer | |
| I_am_Plen | Developer | |
| I_never_finish_anyth | Developer | |
| I_realized | Developer | |
| Ia | Developer | |
| IacomusRex | Developer | |
| Iain Christopher Hayward | Developer | |
| Iain Crockett | Developer | |
| Iain Harrison | Developer | |
| Iain the Indie | Developer | |
| Iam87 | Developer | |
| IamBugzyy | Developer | |
| IamNOTaCAT | Developer | |
| IamWhatonearth Studios | Developer | |
| Iaman | Developer | |
| Iamgineer | Developer | |
| Ian | Developer | |
| Ian Andrew | Developer | |
| Ian Beynon | Developer | |
| Ian Bird | Publisher | |
| Ian Burnette | Developer | |
| Ian Copeland | Developer | |
| Ian Dunlop | Developer | |
| Ian Eborn | Developer | |
| Ian Ellery | Developer | |
| Ian Hamilton | Developer | |
| Ian Heath | Developer | |
| Ian Lilley | Developer | |
| Ian MacLarty | Developer | |
| Ian Mandarini | Developer | |
| 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 | |