Because on Mobile they gain money with ads, on PC there are no ads so you need to pay.
You can install BlueStacks and install the game on it to have it for free (no need to pay because there are ads, like on mobile version).
thank you for testing the game and the advice
Your game looks amazing! Can you please add an options menu to change graphics because my PC is very laggy when playing this, thank you!
In some worlds there is no Titanium, you can find it in other worlds by unlocking them.
