Little Cooperation is a cooperative game for young players aged 2.5 to 5 (but you be the best judge for your own kids of course).
There are five cute polar animals on one side of a bridge standing on 6 ice cubes and an igloo on the other side. With a chunky die players take turn taking their animals to the igloo before the bridge falls. The die has 3 outcomes: go to the bridge, go to the igloo, remove one ice cube. Players work together to get all the animals across before the bridge collapses.