This game could be fun, crafting, selling, gathering components, dungeon diving, levelling up and character development but it very quickly becomes a pay to play and they do it so very obviously. Level up your workers for better crafting speeds and blueprints but only until level 4 after which levelling (done by investing in them) becomes insanely expensive, grind forcing you to buy gems and coins for real cash. Then the reality of necessity for crafting quickly and in great number, heartbroken.