En İyi Steam Oyun Geliştiricileri - Harf O
| İsim | Uygulama Sayısı |
|---|---|
| Overbuilt S.A. | 767 |
| Obsidian Entertainment | 117 |
| Oleg Sereda | 115 |
| OVERKILL - a Starbreeze Studio. | 84 |
| Orange_Juice | 64 |
| owlyboi | 54 |
| Overhead Games | 48 |
| Osmose Studio | 46 |
| Owlcat Games | 35 |
| Octo Games | 32 |
| ONGAKUKAN Co.,Ltd. | 29 |
| Orangepixel | 26 |
| Other Ocean Interactive | 26 |
| Oxide Games | 25 |
| Objectif 3D | 24 |
| OnSkull Games | 23 |
| Ocean Software | 23 |
| Orcsoft | 22 |
| One More Level | 22 |
| Offworld Industries | 20 |