Are the washing machines exploding too ? <| sep |> Adding money sinks is a good idea for removing hyperinflation from a game , and it ' s pretty simple Pay for potions , items etc % Fees on auction house value 20 % or so should remove a large portion of gold Fees on using things like PvP arena Fees on some PvE contentThat should be enough of a money sink to last about 2 years or so for your average MMOAfter that , inflation will start to kick in , so the next step is to add cosmetics . Simply use a secondary currency like explained in the video with a fixed conversion rate that you will increase over time which you use to sell cosmetics . Again , this will stabilise the economy for a few more years as most users will buy cosmetics or buy gold from other players to buy cosmetics . The key thing is to NOT allow users to purchase gold from the bank which is what free MMOs are guilty of , nor exponentially increase the gold you receive from more difficult content that nearly every single MMO is guilty of . You also need to slowly increase the aforementioned cost of servicesgoods to keep it stable . It shouldn ' t be difficult for devs to look at the stats for where money is being spent and how much is in circulation . Shit , they could even slowly decrease the supply of money via reducing money that enemies drop while increasing the fees of GS . There is nothing super innovative required to reduce inflation , it just takes time and a lot of watching statistics .