Rioolratten is an education game that helps children with reading comprehension. In the game, players have to try to get out of the sewer. How do they do that? The player takes a card and has to give the right answer to the question. To respond to the question he has to look threw the flyers, catalogue... If the player gives the right answer he needs to look on the back of the card how many steps he may go forward. If the player doesn't give the right answer than he stays on is place. To win the game the player has to get to number 55. —description from the publisher