Download size

How many GB is Protocol Bound?

15 GB

That is more than the typical Puzzle game, which needs about 3 GB.

Leave at least 23 GB free: games need headroom to unpack updates.

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

Bound is a psychological thriller where you search through private conversations, hidden files, and recordings on devices that aren't your own. Manipulate others, uncover dark secrets, and shape the outcome through the choices you make.