The zombie creature thingies are coming... coming to rip ur brains out and eatz them! U must defend yourself against wave upon wave of these fiendish beings. All u have is ur trust cross-bow ... with it's magical endless supply of arrows. But will it be enough? WHO KNOWS?
Shoot fast, collect the gold, upgrade, fight more creatures, heal yourself, fight more, upgrade and repeat, until all the evil is eradicated from ur lands.
Do u have the constitution, nerve and skills to survive this?