Download size

How many GB is Postmouse?

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.

Join Postmouse on their very first journey to deliver mail in a treacherous world unfit for a tiny mouse. Explore the ruins, meet charming characters and solve puzzles on your way through an abandoned mansion in this free, student-made adventure - all in one small mouse-sized package!