I like how you are talking about this topic as it is very important in various scenarios in the real world. Not everyone in life has enough money to be able to live inside homes because of the increase in housing costs. Because of this some people end up laying in the streets without a place a to live and end up begging for money. I know you haven't talked much about this topic yet but I would like to see what other research you continue to collect so you can make a proper renting game. I don't know much about housing crisis since I grew up with a wealthy family, but some questions I would ask myself for the people out there that can't afford to buy homes with the increase in rent would be: How can I find a way to make myself survive against the rising housing crisis?, What methods are out there that I can use? I'm interested to hear how you will turn all of this into a game. Perhaps you can have the player take on solve puzzles on finding more money and have them reach a certain amount to finish the game.