Download size

How many GB is Journey to Alien Worlds?

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.

You can experience how it feels to stand on the surface of planets, satellites or comets, view the amazing scenery there, and get a better understanding of the differences between these heavenly bodies and the Earth.