Need roblox game ideas that a solo dev can finish

The trick is picking something where you can add content without coding anything new. - obby with a twist, e.g. the course changes every round or each stage has one gimmick. new stages are just building - small tycoon around one odd theme. the core loop is simple and you can keep bolting on upgrades - short horror story, 10-15 minutes, one map. done well these get played a lot and they're finished when the story is - one-room puzzle or escape game What I'd stay away from solo: anything with trading, PvP balance, or a big open world. Those need constant updates and moderation, not just a launch. And build the ugliest version first and get people playing it. Fix the art once people are sticking around.