Download size

How many GB is X-Plane 12?

23 GB

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

Leave at least 33 GB free: games need headroom to unpack updates.

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

X-Plane 12 is the world’s most comprehensive and powerful flight simulator for personal computers, and it offers the most realistic flight model available. X-Plane is not a game, but an engineering tool that can be used to predict the flying qualities of fixed- and rotary-wing aircraft with incredible accuracy.