Since March, the policy of tightening began. The formula was changed to improve the details of the crystals. And recently the amount of free fuel has decreased. Today I calculated how many flamethrowers I need from the 14th level to the maximum of the 15th. This requires 2,000 units of the flamethrower from the boxes. This is about 1 year of continuous play. Or if you use titanium boxes ~ $ 4,500. I think that this amount is more than unreasonable for a game with so many players. And I think many left the game that's why. Therefore, for the growth and development of the entire project, the policy should be changed to mitigate.