On a Citybuild server in Minecraft (e.g., GrieferGames.net) there's a currency. This currency can be traded. However, each player may receive $ 200 of this currency once a day to vote for the server. As far as I know, the currency can't just disappear. So would have to be very fast inflation, right?
No, because there's no 'base value' the currency has to hold on to, there's no data on how much money is in circulation and as prices go down and set by everyone, it is not money in the traditional sense.
Therefore, there can be no inflation.