Every 10 levels is a new sport and each level is harder, but at the end of each level you earn money to buy better gear, (like a system from simple rpg,) but if you lose, you also lose money. Also, you would need to use feedback that you would get from players to improve the game.
Just find two nonfiction texts, after you read them, write down a list of benefits for each text. then just sum it all up in a few sentences and you're done.
