As an elementary school computer teacher, I can attest that Treasure Cove is one of the most popular "free time" activities at my school for grades 2-5. With sound and question reading turned on, however, kids as young as kindergarten can enjoy this game. I purchased both games for my 8 year old daughter for the summer, though I also got caught up in playing them! The games are quite lengthy in order to "win", but are engaging enough to keep kids wanting to play that long. Also, after "winning", kids can continue to play for as long as they want. Of the two, I definitely prefer Treasure Cove for its ease of play as well as the questions; Treasure Mountain appears to be more of a "vintage" game with less fluid graphics, awkward controls, and questions that are more confusing, even for an adult. Treasure Mountain also requires that your monitor resolution and color depth be changed, which is a hassle to do every time the game is played (though it's a great opportunity to teach your kid how to change their own monitor settings!) All in all, the games are quite educational and fun, especially combined in such an inexpensive bundle!