Download size

How many GB is The Artifact Protocol?

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.

A psychological horror game where every artifact traps you in the final moments of someone's life. Face five distinct nightmares, each with its own monster, story, and theme. You're not solving the mystery… you're reliving it.