I bought one of these kits for Sebastian a few years ago probably when he was 8 or 9. It was too difficult for him but one day, he picked them up again and whoosh! he was off. I was a member of a teachers resource center at the time and we could buy these kits 75% off so I bought several. He ended up building cities, including his version of the Ottoman Empire, and ultimately they caused the firing of our cleaning lady…Gifted.