Multiplayer game idea

so this was just a random idea i had for a game as an art piece, not really marketable. a multiplayer game (or single player. thoughts?) where players start in a random house/apt/hospital etc. players can interact with most everything in a very normal way. there is no start menu, no objectives, points, money, anything that you would typically find in a video game. players just walk around, they can go outside and into other buildings but stay contained within the city or neighborhood or what ever. nothing seems to do anything. but all this time there is a Godzilla type AI as the "gamer" stomping around smashing buildings with hp bar, racking up points, xp, etc. the player has no awareness of the "gamer" except if its steps near them or kills them in some way. only when they are dead will it zoom out and you can see the "gamer" getting points for the kill.

anyways just an idea that popped into my head, you'll probably have to put up with a lot of them this semester. but id like to hear some opinions if you have them. like always im a robot, i have no feelings so be brutal, i like ALL feedback.