Any suggestions? My kid's only 4, but I'm having a hard time finding things that are good. The preschool games tend to be a bit too basic, but the next level up is too hard (requiring reading, for example, or having the math facts memorized).

I do already have Minecraft and I'm letting him play around with that a little. It's pretty challenging at this age, but he can kinda get the basics and enjoys doing what he can. He's seen some videos on YouTube, so he knows what you can eventually do with it.

I don't usually buy games, but Amazon just gave out the 500 coins for kindle owners, so that's what's prompted my current search.