Download size

How many GB is ProtoStone?

1 GB

That is less than the typical Sport 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.

ProtoStone is a card game with local split-screen multiplayer (Offline), 4 different classes and over 150 different cards to collect.