Download size

How many GB is B1?

2 GB

That is less than the typical Simulator game, which needs about 4 GB.

Leave at least 8 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 find yourself lost in a mysterious space in the underground shopping area of a certain building while trying to have lunch. Clear the game presented by someone and aim to escape from the eerie underground shopping area.