Download size

How many GB is ARB: Anomalous Research Bureau - Museum?

5 GB

Leave at least 11 GB free: games need headroom to unpack updates.

The figure is the storage Steam lists as required for this game, not a measured download.

Investigate a mysterious old museum as an agent of the Anomalous Research Bureau. Identify strange anomalies, file accurate reports, and endure the nights until your investigation is complete.