SCP: Containment Breach Multiplayer is free to play, so its 28,523 reviews count players rather than sales and there is no owners estimate. The Charts section shows who is playing.
No follower sample for SCP: Containment Breach Multiplayer yet. The followers poller reaches every coming-soon game and the most played games daily; the count appears here with its first sample, and gains once a second sample the window back exists.