I'm looking for a freeform or possibly Homebrew game for my character. He's basically an Isekai character who has gotten to level 100 and found his way back to the real world. I will try to be as accommodating as I can in his powers, but I really want to face challenges similar to someone like Superman's. I don't mind if it's story driven or character driven. My only stipulation is that so long as you don't insult me, I'll be cooperative.