Download size

How many GB is I Mother?

10 GB

That is more than the typical Adventure game, which needs about 5 GB.

Leave at least 17 GB free: games need headroom to unpack updates.

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

Embark on an adventure as a solitary Neanderthal woman in a prehistoric world devoid of language, inspired by the latest scientific discoveries. Decode prehistoric symbols, humanity’s earliest form of communication, and survive long enough to unravel the mystery of human evolution.