Download size

How many GB is Gray Planet?

30 GB

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

Leave at least 41 GB free: games need headroom to unpack updates.

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

Explore a open world set in a post-apocalyptic background, gather resources to craft various equipment and build your base. Defeat different types of monsters while investigating what happened on this planet.