Download size

How many GB is Stack Chaos: Alien Express?

5 GB

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

Leave at least 11 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 physics-based arcade game where you pilot a UFO dropping possessed horror objects to build impossible towers. Swing the pendulum, time the drop, pray it doesn't collapse. 400+ objects, 11 game modes, and a sarcastic goblin that roasts your every move.