Download size

How many GB is The Mare of Jonah?

3 GB

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

Leave at least 9 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 first-person psychological horror/mystery adventure where you play as a small boy trapped in an unknown and dark mansion. Try to survive the vengeful evil spirits lurking in the dark while exploring the rooms and corridors in hopes of finding clues that may lead to a way out of this horror.