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Something to consider for the starter tags leafo is looking for is that you don't necessarily want or need pin-point accuracy. You want your categories to be very broad and you want the tags that leafo adds to the suggestions to be just a smidgen more accurate than that. It's advantageous to creators to use terms that are common language and it can hurt you to use terms that are known in hyper specific circles or to game designing communities. If we want to work with Itch.io to bring a wider tabletop audience to the store for tabletop stuffs then we should be concerned about choosing tag terms that are known to that wider audience and easily recognizable.

And also keep in mind that tags are not set in stone; there would be the suggested ones and you can enter your own as well.