トップSteamゲーム開発者 - 文字 J
| 名称 | アプリ数 |
|---|---|
| Joel Steudler | 165 |
| JointedRail | 87 |
| J.M.L. Riem | 81 |
| Joycity | 62 |
| Jussi Kukkonen | 50 |
| Just Trains | 50 |
| JoyBits Ltd. | 45 |
| Jordan Freeman Group | 43 |
| Jetdogs Studios | 40 |
| Jackbox Games, Inc. | 39 |
| Just Flight | 35 |
| Just kidding entertainment | 35 |
| JY | 34 |
| Jujubee S.A. | 32 |
| JOZGamer | 23 |
| Jutsu Games | 23 |
| Jo Seraph | 22 |
| Jagex Ltd | 20 |
| JDB Artist | 20 |
| JanduSoft | 19 |