Let us tell a little about how purchases work in the game. There are only three places where you can buy something.

Purchase 1.
You can unlock an additional character when you start a new game.

Purchase 2
You can buy x2 boosts for experience, gold and essence. They will remain in effect until the character you are playing dies. Boosts are sold by the Goblin Merchant at the Bar "Drunken Rat"

Purchase 3
You can open the option of using the original images on the cards, without having to draw them. For those who don't want to draw at all. You can open in the "Image Archive" in the Drawing Editor at the bottom right.
The last important thing to talk about purchases. By buying something in the game, you help us with the development of Sketch Crawler, because we won't last long without money and the project would have to stop. Once it happened with Sketch Tales when we ran out of money and had to freeze it until better times.
Tell us what you think about purchases. Maybe you have some interesting ideas about it.
