and when I place the token on a surface, I am able to recognize which character that is.
RFID is one way to approach this but generally in my experience RFID somewhat requires that the tag be placed in the vicinity of the coil and moved away before the second tag is recognized. With many tags in the field, I'm not certain that the simple RFID hardware will recognize a new-token ... and I am not certain it will not.
I think the critical question is, "How many tokens?" Are you planning on tracking Colonel Mustard from the drawing room to the Library? This would be much more complex.
The more we know, the more we can
badger harass HELP you!