Economy

monsters give loot which can be exchanged for money

sinkholes

-everytime you die you lose stuff

-your equipment takes damage therfore you need to repair it or enchanting it

-selling to npc gives you a small percentage of an items value

- buying potions, ammo, food and drinks

-aution house fees

-transportation, sending letters and open up bank slots

-if you want to learn a skill you need money

-when spending money on gambling (such as breeding a white horse)

it won't inflate if you have something that backs up its value

example: a valuable potion that is used frequently will be only found by a npc thus that potion will always cost taht much

another example: real life money to in game