How do I create Solar System in Doodle God?

To create the Solar System in Doodle God, you need to follow a series of element combinations. Start by unlocking the basic elements like Fire, Water, Air, and Earth. Combine Fire and Water to create Steam. Then, combine Air and Earth to create Dust. Next, mix Dust and Fire to create Lava. Combine Lava and Air to create Stone. Once you have Stone, combine it with Fire to create Metal. Now, combine Metal and Stone to create Tools. Use Tools with Stone to create a Wheel. Combine Wheel with Tools to create a Cart. Next, combine Cart with Tools to create a Wagon. Now, combine Wagon with Tools to create a Car. Use Car with Tools to create a Plane. Combine Plane with Tools to create a Rocket. Finally, combine Rocket with Air to create the Solar System. This process involves progressing through multiple steps and combining elements logically to unlock the Solar System. Keep experimenting with different combinations and revisiting earlier elements as you unlock new ones to progress further in the game.