Download size

How many GB is Underground: Chapter 1?

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.

Underground is a first-person horror-puzzle game where you explore a mysterious subway system, solve deadly puzzles, and escape the creatures lurking in the dark. Will the train take you home—or deeper into the nightmare?