There are several online websites that offer the game Snail Bob for free, such as Cool Math Games, A10 and the Snail Bob main page. Snail Bob is a game designed for kids that features a snail who needs help finding something.
There are different versions of the game, and in each version, the snail is trying to reach something different. In one version he is trying to find his home, and in another version, he is trying to get to his Grandpa's birthday party. The games feature puzzles and other obstacles on each level that a child must think about in order to complete it.