| IrisOnTheRise | Developer | |
| IrisZ | Developer | |
| IrishJohnGames | Developer | |
| Irith14 | Developer | |
| Irmando | Developer | |
| Iron Blood Games | Developer | |
| Iron Byte | Developer | |
| Iron Byte (Juan Arias, Ramiro Arias, Ricardo Arias, Roberto Eimer, Carlos Galucci, Juan Gaspar, Fernando Vieira) | Developer | |
| Iron Chin | Developer | |
| Iron Claw Interactive | Developer | |
| Iron Galaxy | Developer | |
| Iron Galaxy Studios | DeveloperPublisher | |
| Iron Lore Entertainment | Developer | |
| Iron Rainbow Wargame Simulations | Publisher | |
| IronCladSwag | Developer | |
| IronEqual | Developer | |
| IronOak Games | DeveloperPublisher | |
| IronPowerTGA | Developer | |
| Ironax | Developer | |
| Ironchest Games | Developer | |
| Ironclad Games | Developer | |
| Ironhide Game Studio | DeveloperPublisher | |
| Ironoak Games | Developer | |
| Ironstone Partners | Developer | |
| Ironward | Developer | |
| Ironwind Software | Developer | |
| Irrational Games | Developer | |
| Irregular Corporation | DeveloperPublisher | |
| Irreverent Pixel Feats | Developer | |
| Irtaza | Developer | |
| Irwan Owen | Developer | |
| Irwin | Developer | |
| Irwin Segarane | Developer | |
| Irx99 | Developer | |
| IsaFerrer | Developer | |
| IsaVII | Developer | |
| Isaac | Developer | |
| Isaac 2 | Developer | |
| Isaac Buckley | Developer | |
| Isaac Games | Developer | |
| Isaac Roy | Developer | |
| Isaac Schankler | Developer | |
| Isaac Soong Bo Jun | Developer | |
| Isaac Thompson | Developer | |
| Isaamp | Developer | |
| Isabella Acuna | Developer | |
| Isabella Ava | Developer | |
| Isabella Djurovic | Developer | |
| Isabella Winthrop | Developer | |
| Isabellabs | Developer | |