Ok, tour is not exactly a game, but sometimes it comes in handy. With Loquiz it is very easy to create a tour where "players" or tourists go to places in a given order. You could use story ("no answer") questions in a tour, or you might add some element of adenture by asking player to find out about the object.
What differentiates Tour from Snakes and Ladders is that there is no strategy aspect. You always move on to the next point. Nothing to think about