I used this as part of my home-school curriculum for my 1st and 2nd graders. It is great for teaching children critical and logical thinking skills. For example, in order to get the Zoombinis from one side of the river to the next you have to arrange them in a certain order according to certain characteristics. Usually, the player is given a clue as to what are the acceptable characteristics. The goal is to get all of the Zoombinis to the destination.
My girls LOVE this game and play it frequently for long periods of time. Sometimes, I have to read the clues given and explain them to the girls before they can proceed, but more often than not they are able to figure it out on their own.
IF you are looking for a fast action, thrilling, whiz-bang, cool graphics game, this is NOT what you're looking for. This is more of a game of strategy and thinking than run around and kill the aliens kind of game. Your child or student will have to be fairly independent to play this game and be able to do a lot of problem solving and thinking on their own. Also, if you're child/student has a low tolerance for frustration, you might not want to purchase this game. Frequently, it takes several tries to get the strategy or riddle figured out before the player is successful. There are several difficulty settings, but even at the lowest setting your child/student probably needs to be at least 5 or 6 years old to play on his or her own.