I'm sure you'll get lots of answers, but one of my top 10 games is the Portal series. The puzzles and humor and story are well worth it IMO. The Civilization ga

I'm sure you'll get lots of answers, but one of my top 10 games is the Portal series. The puzzles and humor and story are well worth it IMO. The Civilization games I also recommend. Whether that expands a teen's mind I'm not sure but I certainly enjoyed it as a teenager.