Hamsterdam is a tower defense game for the whole family. The water is rising and the only things standing between the river and your town are a dam and a handful of brave hamsters. Place your hamsters on your dam and roll dice to see where the floods will strike. If you have a hamster there to protect your dam, they become part of your reinforcements. If the flood strikes an unprotected part of your dam, the flood waters seep through. Keep your town the driest and you win.