I placed like 24 objects before the tower fell over, but it said the height was 0 m. Also if you misjudge the placement of the first plank, it's probably game over, unless the game gives you another plank..
Yeah it's pretty bug-riddled. As for plank placement, trial/error and figuring out what stacking strategies result in more stability is a major part of the game. Thank you for trying it out!
