Just how many penguins can fit on one slippery iceberg? Penguin Pile-up challenges little zoologists to get all their penguins safely on board. Problem is this iceberg is a bit wobbly and has only so many ledges and sometimes one slips and takes many more penguins with it. Get the most penguins onboard and you win! Ravensburger Game #21312 For 1-6 players ages 5-10 years.