Download size

How many GB is Sirius-4?

60 GB

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

Leave at least 77 GB free: games need headroom to unpack updates.

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

"Sirius-4" is a plot-oriented space simulator that gives the player complete freedom of action as a hired pilot of the "Sirius" unit. The action takes place on the outskirts of human space during a turbulent time for the galaxy after a global war.