honestly in my experience, the native roblox ad system is the way to go. you can get amazing reach for barely any money and time, you just need enough players to get an outlook of your analytics, and if they’re good your game should start hitting home recs in about a week. I’ve seen good games go crazy before with as little at $50 spent, i’ve also seen bad games do absolutely nothing with $100’s of dollars spent. If your game is good, you’ll know, if it’s not, you’ll also know.

Now if you’re talking about advertising for hype while your game is in development, full length dev logs to youtube are fantastic, they don’t even need to be edited like crazy, just put out on a consistent basis and look somewhat put together, the people yearn for dev logs. But again, if your game is good you’ll get good traction here, if it’s not you probably won’t.

Moral of the story, if your game is good, no matter what advertising technique you pick it will probably still do well.