Download size

How many GB is Orders of Magnitude?

4 GB

Leave at least 10 GB free: games need headroom to unpack updates.

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

Have you ever wondered what the whole Universe looks like? With the myriad Galaxies, each containing billions of Stars, including our Solar System? Have you seen a Human Brain and its Neurons? DNA? What about the Electrons surrounding the tiny Atomic Nucleus? And what lies at even smaller scales?