Download size

How many GB is 15th Prison?

2 GB

That is less than the typical Puzzle game, which needs about 3 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.

There is no way out of this prison. But examine your surroundings carefully, do not ignore any abnormalities. Take the envelope given to you by the block officer and proceed, there may be an escape route. Your carelessness may result in death.