Beavers 

Beaver city is being threatened by a river tsunami! Help the beavers remain dry as they gather resources and build barricades to stop the huge waves from flooding the city! Select the proper resource to gather, press the correct button sequence and build the barricades before the waves come. But beware of random events such as the apparition of the God Casturno, a terrible leakage of the dangerous "castorium" substance, or an apocalyptic moss infestation!