トップSteamゲーム開発者 - 文字 U
| 名称 | アプリ数 |
|---|---|
| Ubisoft - San Francisco | 1 542 |
| Ubisoft Montreal | 207 |
| Ubisoft | 94 |
| Ubisoft Toronto | 89 |
| Ubisoft Quebec | 73 |
| UwU | 51 |
| Ubisoft Mainz | 42 |
| Ubisoft Montpellier | 32 |
| Ubisoft Kiev | 32 |
| United Independent Entertainment | 30 |
| Urban Isotope | 30 |
| Ubisoft Shanghai | 29 |
| United Front Games | 28 |
| USERJOY Technology Co.,Ltd. | 27 |
| UnknownX | 26 |
| Unknown Worlds Entertainment | 26 |
| U-Secret Studio | 25 |
| UL | 24 |
| Unbound Creations | 23 |
| Ume Softworks | 21 |