At least in the U.S. game rules aren't covered by copyright even though the art and any expressions of the rules are. https://www.copyright.gov/fls/fl108.pdf h

At least in the U.S. game rules aren't covered by copyright even though the art and any expressions of the rules are. https://www.copyright.gov/fls/fl108.pdf https://www.copyright.gov/fls/fl108.pdf