| Jamalamalamajam | Developer | |
| Jamathan | Developer | |
| Jambav | Developer | |
| JamboHylando | Developer | |
| Jambudd | Developer | |
| Jamdat | Developer | |
| Jamdat Mobile | DeveloperPublisher | |
| Jamelão Entertaiment | Developer | |
| Jamer | Developer | |
| James | Developer | |
| James Kanto Burton | Developer | |
| James A. Sausville | Developer | |
| James B. Yin | Developer | |
| James Bagley | Developer | |
| James Beech | Developer | |
| James Berkelmans | Developer | |
| James Brankin | Developer | |
| James Brown | Developer | |
| James C Gray | Developer | |
| James Closs | Developer | |
| James Colestock | Developer | |
| James Dash | Developer | |
| James Dingle | Developer | |
| James Dornan | Developer | |
| James Drazic | Developer | |
| James Earl Cox III | Developer | |
| James Edward Smith | Developer | |
| James Frowen | Developer | |
| James Fry | Developer | |
| James Guard | DeveloperPublisher | |
| James Hartshorn | Developer | |
| James Higgins | Developer | |
| James Hooper | Developer | |
| James Id | Developer | |
| James K. Isaac | Developer | |
| James Lane | Developer | |
| James Mackey | Developer | |
| James McNeill | Developer | |
| James Millichamp | Developer | |
| James Montagna | DeveloperPublisher | |
| James Morrow | Developer | |
| James Nunes | Developer | |
| James P. Orazi | Developer | |
| James Paige | Developer | |
| James Patton | Developer | |
| James Poole | Developer | |
| James Ridley | Developer | |
| James S. Nixon | Developer | |
| James Shipp | Developer | |
| James Smart | Developer | |
| James Software (David Aubrey Jones) | Developer | |
| James StAnthony | Developer | |
| James Treneman | Developer | |
| James Tripp | Developer | |
| James Vermillion | Developer | |
| James Wilson | Developer | |
| James Zeidel | Developer | |
| JamesChappFillmore | Developer | |
| JamesHillten | Developer | |
| JamesLindeman | Developer | |
| JamesMcVitty | Developer | |
| JamesMoulang | Developer | |
| JamesSchy.ArdentVision | Developer | |
| JamesSheppard | Developer | |
| Jamesterjim | Developer | |
| Jamesy012 | Developer | |
| Jamhack Games | Developer | |
| Jamie | Developer | |
| Jamie Holub | Developer | |
| Jamie Niman | Developer | |
| Jamie Parish | Developer | |
| Jamie Park | Developer | |
| Jamie Rollo | Developer | |
| Jamie System Development | Publisher | |
| Jamie Woodcock | Developer | |
| JamieHulkesCC | Developer | |
| JamieJessop | Developer | |
| JamieOutram | Developer | |
| Jamiex304 | Developer | |
| Jamila R. Nedjadi | Developer | |
| Jamit Games | Developer | |
| Jammed Game | Developer | |
| Jammed Up Studios | Developer | |
| JammerTankers | Developer | |
| Jammin' Rabbit | Developer | |
| Jamming Games | Developer | |
| Jamopolis Interactive | Developer | |
| Jamp | Developer | |
| Jamroot Games | Developer | |
| Jamsf | Developer | |
| Jamsworks | Developer | |
| Jamul Software | Publisher | |
| Jan Kanty Janiszewski | Developer | |
| Jan Marcano | Developer | |
| Jan Schneider | Developer | |
| Jan Strach | Developer | |
| Jan Vávra | Developer | |
| Jan Willem Nijman | Developer | |
| Jan-Tore | Developer | |
| JanJanDev | Developer | |