Download size

How many GB is 15th Floor?

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 are stuck in an apartment building with endless floors. Observe your surroundings carefully to go up to the 15th floor and reach the roof of the apartment building. Do not ignore any abnormalities. Your carelessness could result in death.