Download size

How many GB is I'm Not Alone?

1.5 GB

That is less than the typical Adventure 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.

I'm Not Alone is a horror game starring Patrick Weber, an exorcist who has been summoned to a mysterious Austrian mansion to free it from supernatural evil. Despite its incredibly low quality, it was released on Steam as a full-priced game.