Download size

How many GB is Subsurface?

1 GB

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

Leave at least 7 GB free: games need headroom to unpack updates.

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

Subsurface is a 1–4 player online co-op underwater horror game where players dive into abandoned underwater facilities to recover valuable scrap, meet demanding quotas, and survive terrifying creatures lurking in the depths. Explore, scavenge, and escape together—but beware, not everyone makes it back to the surface.