The blocks got enormous and you did not

StackUp now has a build mode where the blocks are the size of a small car and your character is still 1.60 m tall. Nothing about the character changed. Everything about the tower did.

The slabs are hollow, so they weigh about as much as three of you and handle like a mattress in a stairwell. Standing next to a stack of them you stop planning and start negotiating. Let go, and the whole thing sways for a while as if it is thinking it over.

Same game, same four people, same bad idea. It is just much further above your head.