Wydawcy Steam z literą O - Strona 6
| Nazwa | Liczba aplikacji |
|---|---|
| One Wheel Studio | 5 |
| Over The Top Games | 5 |
| Open Mid Interactive | 5 |
| Origin Labs | 5 |
| Orbi Universo Team | 5 |
| OraMonkey | 5 |
| Orange Juice Dog | 5 |
| Odders Lab | 5 |
| OVALIS INVESTMENTS LIMITED | 5 |
| Old World Studios™ | 5 |
| Oddworld Inhabitants, Inc. | 5 |
| OkaeriDev | 5 |
| OTTO Games | 5 |
| Outer Brain Studios | 5 |
| Orgipix Prod | 5 |
| One Man Media | 5 |
| Onteca Ltd | 5 |
| Ohm Force | 5 |
| Octillion Entertainment | 5 |
| Oriolus Software GmbH | 5 |