| It Works! (Kinda) Studios | Developer | |
| It's A Game Studio | Developer | |
| It's Anecdotal | DeveloperPublisher | |
| It's Deerlord | Developer | |
| It's Katsu | Developer | |
| ItGrindsAndItRoars | Developer | |
| Italo Games | Developer | |
| ItayGerson | Developer | |
| ItchYoBoi | Developer | |
| Itchy B | Developer | |
| Itectori | Developer | |
| Item Crate | Developer | |
| Iterative Games | Developer | |
| IterativeInteractive | Developer | |
| Itey | Developer | |
| Ithildin | Developer | |
| Itizso | Developer | |
| Itochu | DeveloperPublisher | |
| Itooh | Developer | |
| Its Anecdotal | DeveloperPublisher | |
| ItsCadency | Developer | |
| ItsGeppy | Developer | |
| ItsHornUnicorn | Developer | |
| ItsKazBorn | Developer | |
| ItsMaS | Developer | |
| ItsMeTwn | Developer | |
| ItsNotBryan | Developer | |
| ItsNotSimon | Developer | |
| ItsRize | Developer | |
| ItsTheMaceo | Developer | |
| Its_Trey03 | Developer | |
| Itsui | Developer | |
| ItzBruceLee | Developer | |
| ItzGreenForever | Developer | |
| Iuri Fontana | Developer | |
| IvDGear | Developer | |
| Ivan Antešić | Developer | |
| Ivan Horn | Developer | |
| Ivan Khoroshev | Developer | |
| Ivan Konev | Developer | |
| Ivan Lecomte | Developer | |
| Ivan Manley | Developer | |
| Ivan Moraleja | Developer | |
| Ivan Ng | Developer | |
| Ivan Palazzo | Developer | |
| Ivan Panasenko | DeveloperPublisher | |
| Ivan Papiol | Developer | |
| Ivan Stepanov | Developer | |
| Ivan Strand | Developer | |
| Ivan Voirol | Developer | |
| Ivan Zanotti's MyMadnessWorks | Developer | |
| Ivan-Tigan | Developer | |
| IvanBje | Developer | |
| IvanEender | Developer | |
| IvanKae | Developer | |
| IvanMota | Developer | |
| Ivan_ss | Developer | |
| Ivanovich Games | DeveloperPublisher | |
| Ivanything437 | Developer | |
| IvarForkbeard | Developer | |
| Ive Sorocuk | Developer | |
| Ivenaccip | Developer | |
| Ivent | DeveloperPublisher | |
| Ivent Games | Developer | |
| Iveson Software | Publisher | |
| Ivis | Developer | |
| Ivo Penedo | Developer | |
| Ivo Pfaffen | Developer | |
| Ivolgamus | Developer | |
| IvolgamusEU | Publisher | |
| Ivory Crow Games | Developer | |
| Ivory Lion Games | Developer | |
| Ivory Tower | Developer | |
| Ivy Games | DeveloperPublisher | |
| Ixel Games | Developer | |
| Iyad.Hout | Developer | |
| IyanTehGamer | Developer | |
| Iyashikei | Developer | |
| Izanagi Games | Publisher | |
| IzanagiGames | Publisher | |
| Izel Levi | Developer | |
| Izhard | Developer | |
| Izick | Developer | |
| Izik | Developer | |
| Iziminza | Developer | |
| Izkira | Developer | |
| Izln | Developer | |
| Izloople | Developer | |
| Izzle | Developer | |
| Izzminhal Akmal | Developer | |
| IzzyBennettDev | Developer | |
| IzzyDev | Developer | |
| IzzyOak | Developer | |
| J | Developer | |
| J & J Gameware | Developer | |
| J A Y | Developer | |
| J Brooks | Developer | |
| J Dave Rogers | Developer | |
| J-Force | Developer | |
| J-Soft | Developer | |