Download size

How many GB is Project Unknown?

9 GB

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

Leave at least 16 GB free: games need headroom to unpack updates.

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

PROJECT UNKNOWN is a 1-4 online co-op horror game with unique playable characters and special abilities. Exorcise different ghosts, utilize a variety of tools, and immerse yourself in an experience full of horrifying visuals and complex mechanics.