We didn't have time to make a better tutorial, sorry for that! You need to make 5 potions of construction in order to create the tower. After you see four tower pieces in front of you (on the left side) and you build the fifth one, you win. In order to create the potions you need to:
Select the blueprint
Draw the circle until it dissapears
Click the materials
Spam click on top of the potion so you can throw the potion to the game!