Unlocks after you complete the first episode of Doodle God. You can unlock the puzzle with 50 mana.

Build a Skyscraper of sand and stone. Create a Skyscraper using the limited elements you have available. Follow the steps to help you complete the puzzle if you have trouble solving for it.

Earth + Water = Swamp
Repeat this step two more times to create 3 Swamps total
Life + Swamp = Bacteria
Bacteria + Water = Plankton
Plankton + Stone = Shells
Sand + Swamp = Clay
Repeat this step again to create 2 Clays total
Stone + Stone = Fire + Stone + Stone
Repeat this step again to create 2 Fires total
Clay + Fire = Bricks
Fire + Sand = Glass
Shells + Stone = Limestone
Clay + Limestone = Cement
Cement + Water = Concrete
Bricks + Concrete = House
House + Glass = Skyscraper