Trying To Make A Game... And I Need Help

Ok, I am wanting to make a fun game that everyone would enjoy playing but I am having a hard time getting the hamster back onto the wheel and rolling so I need some of y’all to give me ideas! What is a two-player game that you can play against a computer (That I haven’t made) that would be fun to play and easy for me to make?

A intricate simulation of life where you and you friend battle and explore the world…


Uhhh… well you see I would love to

(I am working on something like that too but haven’t put much effort into it recently)