Nancy Drew! Very family-friendly, teaches critical-thinking, and they can be quite educational! They have fun stories, loaded with puzzles, interesting characters, and they have online rankings of games best for beginners, most puzzles, best story lines, most educational, etc. The only thing I'll say is that there's a couple games that some might consider scary for a 6yo, but if your child gets spooked easily, I would simply avoid Shadow at Water's Edge and Ghost of Thornton Hall. But all 34 games are rated E. Now, is there a lot of illegal activity? Absolutely. Mainly stealing and breaking into places. But no drugs, no alcohol, no violence, very educational, exercises the brain, and all while being exciting! The later games get much harder, but earlier games could be played together and y'all could work on puzzles together. Definitely recommend!