Free ML idea for who lacks inspiration

Take an algorithm like AlphaZero. Use it to rate how complicated it is to master a game (how long until further iteration of playing against itself does not return new benefit). Make, either manually, or with another algorithm, make modification to the rules of the game. For instance, for chess, change the type of pattern pieces can move, etc. Try to increase the score. profit of your newly created game that you can market as being scientifically more deep than the original version.