Counterfeit Game Money

At Chestnut Lodge Wargames Group we design and play a lot of games involving game money. We do this to the extent that we often joke that all you need for a game are CLWG members and some (play) money. By definition none of this is real, but in game terms it is always genuine. There is never any question that some of it could be fake. For more modern games involving high value government expenditures this is definitely fine, but in some of the games we play it would make for an interesting dynamic if it turned out we couldn’t rely on the value of the coins.

So while my daughter was playing with my stack of play money (see the photo above) I was thinking that I could run a game, probably in a fantasy setting, where the different players had briefings about what they saw as acceptable money. I thought it would need to be a trading game, perhaps with merchants from different parts of the world with their own coinage, and supplying things to either each other or to city/principality governments. I could brief them about the relative values they had for each of the types of coins, and I could also suggest to some of them that damaged coins, or those where the paint had come off, weren’t worth as much (or were even totally worthless). This would add an interesting dynamic to the game, especially if the briefing wasn’t too widespread. An additional possibility would be to deliberately add in counterfeit currency and have someone try and pass as much of it as they could into circulation.

What do you think, could this be done?