Do you have to unlock anything to make saltpeter in doodle god?

In Doodle God, you need to unlock certain elements to create saltpeter. Specifically, you must have access to the "Earth" and "Fire" elements to create "Gunpowder," which is necessary for making saltpeter. Additionally, you'll need the "Alchemy" element to combine your elements effectively. Once you have these components, you can successfully create saltpeter in the game.