Download size

How many GB is Horizon Journey?

10 GB

That is more than the typical Strategy game, which needs about 3 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 epic adventure to Mars in Horizon Journey, an open-world survival game that blends colonization, terraforming, and exploration in both single-player and multiplayer co-op modes. You're tasked with the monumental challenge of making Mars a new home for humanity.