When I think of young adult games, I think of Birdland since that would’ve been a game I enjoyed:
Another title would be A Paradox Between Worlds:
They’re both games I would recommend to a young adult interested in the medium, though for different reasons. Birdland captures the imagination found in the novels while APBW is about the fandom politics of using Tumblr. They are both fun titles, so if you do pick them, I hope you enjoy ‘em!
Do you know yet whether you’re particularly interested in choice-based games, or parser-based games (where type GET LAMP etc.)? Or both? Or just whatever takes your fancy in subject matter, format be damned?
If choice-based, you might want to look at Choice of Games’s catalogue. They’re commercial, though they give a lot of it for you to test with demos of early chapters, and they range a lot in styles and subject matter. But there’s a ton of popular and genre games there where you don’t have to guess what the game might be like.
If you don’t mind saying, what games did you try that you found too high brow? I mean, the main reason to ask is to just find out what doesn’t suit you, in order to find things that do.