Game concepts generally can't be copyrighted, in the US at least. From Wikipedia [1]: > gameplay elements of a video game are generally ineligible for copyright

Game concepts generally can't be copyrighted, in the US at least. From Wikipedia [1]: > gameplay elements of a video game are generally ineligible for copyright [1] https://en.wikipedia.org/wiki/Intellectual_property_protection_of_video_games https://en.wikipedia.org/wiki/Intellectual_property_protecti...