Yes, tabletop games are fine to submit; we mention any engine or tool is allowed. My only concern is I can't guarantee we can provide feedback or if someone will be able to print out and play the game but since you are okay with that, it should be fine.

the table top game sounds super interesting!

This may take a little more work, but if you could maybe record gameplay footage and put the link somewhere in your submission, this may make it easier for voters to see.

Otherwise you can just include a description of the game.