There are tons of free historical games, interactives and simulations on the web. Playing history aggregates info on these resources in a simple, searchable database making it easy to find, rate, and review historical games. There are currently 126 shared games.
An awesome free online game to teach kids about musical instruments. Listen to the sound and guess what instrument makes it. When you get it right, a new member will join the orchestra. And there's a surprise at the end!