Download size

How many GB is 12 Hours?

4 GB

Leave at least 10 GB free: games need headroom to unpack updates.

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

You’re trapped in an infinite, repeating corridor. If you encounter an anomaly, turn back immediately. Make the right decisions, and time will advance. True exits will appear at 12:00. Remember, you are alone.