Day of the Viking (2014)

Tap on waves of marauding vikings, commanding your archers to rain pointy death upon them. Or for a bigger punch use the slingshot to send boulders, exploding barrels, and even pigs to fend off their advances. As the days and seasons go by, the vikings get smarter, building shields, slides, and moving war machines to get past your defenses. That’s where you use coins gathered in play to upgrade your fortifications and ammunition. It’s gonna be a heckuva fight.