The definition of inflation you are using is incorrect. Inflation does not come from injecting money into an economy as your post makes it seem. Rather, it occurs when there is a sustained increase in the average price level of an economy over time. Usually, the injection of mountains of cash bids up the prices of goods in the economy, but I would argue that this is not happening on Meepcraft for one essential reason: the market structure of Meepcraft is oligopolistic for the majority of goods. In other words, there are a certain, low number of producers selling homogeneous goods. This means that, for firms to gather more market share and win the competition for profit, they must make their version of the same product more attractive than that of their opponent. What, you say? Make the same product... different? How will a dirt block from Pluto be different from a dirt block from Ekj? How is this seemingly paradoxical outcome achieved? The answer is price competition, which can result in price wars that drive the price of the good significantly lower than its market value. Lowering my price is attractive because it will give me more market share, but this doesn't work out in the long run when every firm partakes in the mutually destructive act of cutting prices as close to zero as possible. In conclusion, any inflationary pressures would be countered by the incentive to lower prices in the oligopolistic market structure. The only way that prices can be driven up in our economy is if a cartel is formed, which is nearly impossible because of the ability to cheat... see Prisoner's Dilemma. There is no incentive to cooperate in this block-based game.