Legacy Feud: Rule Book

I'll say it now. This is a project I might quickly lose interest in but I want to put it out there for now. I was watching an anime about board games, and it got ideas flowing a little. One line in the anime said "no one person can make a game". So, if you read this and have any ideas how to improve it, by all means, tell me! I want this to be a game where the player can rewrite rules they don't like, as though they were modding a video game. The base game can be simple, but alternate rulesets can get as complicated as possible as long as they still make sense.