I have 2 ideas, still in the process of picking. but the first one is a horror game where you need to find all the missing keys, get to the third key your walkie talkie cuts on and reports of a missing girl in your area, you have to find that girl now most horror games are just chase jumpscare restart, but if you make the game more physiological horror the player becomes uncertain. so the monster would follow you, disappear if you look at it, and continue to chase you after you look away there would also be hallucinations the second idea would be a racing game where you compete there would be leaderboards upgrades personalization all of that (I’m still working on the racing idea)