Crossplay

Is I'm on Observation Duty crossplay?

Crossplay does not apply to I'm on Observation Duty: it has no online multiplayer.

Your job is to monitor live surveillance camera footage and spot anomalies in the monitored rooms. Anomalies range from furniture movement to otherworldly intruders. When you spot an anomaly you have to file a report to fix it. You will need sharp eyes and good memory to survive the entire night.