Need help with a game money system project

Hi, i’m working on a Sci-Fi tabletop roleplaying game with a unique way to deal with currency. I want to create a way to give the players something like a credit card and be able to add and take “money” for them through a main reader device. For a more visual representation of what I want to make is the Monopoly board game credit card system they have used before.

I have a small amount experience with electronics, and would love some advice on how I should approach this project.


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Perhaps something like this NFC/RFID reader?

Cards can hold 1K of data. Last time I bought some, the cost was about 1 or 2 dollars each.