Download size

How many GB is Subject 33?

8 GB

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

Leave at least 15 GB free: games need headroom to unpack updates.

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

SUBJECT 33 is a story-driven psychological horror game set in an abandoned asylum. You are Ephraim, sent on a mission to uncover what happened before its sudden closure in 1984. As you explore, the line between reality and memory begins to blur — and the truth you uncover might destroy you.