Download size

How many GB is I am an Air Traffic Controller 4?

3 GB

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

Leave at least 9 GB free: games need headroom to unpack updates.

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

Since its release in 1998, this air traffic control game has established itself as a long seller, strongly supported by numerous users both inside and outside of aviation fandom.