EASY -2
EASY it will reduce -2 from this original price.

HARD +5
HARD it will add +5 to the original price. This is for people who are experts who want a little difficulty but still want to enjoy the game a little. This is also suitable for those of you who use mods to get resources too quickly

NORMAL +2
NORMAL it will add +2 to the original price. This is suitable for those of you who use mods that add resources too quickly but still want to enjoy the game