What happens when you take one part Pocket God and one part traditional tower defense gameplay? You get Knights Onrush, a fantastic action-strategy game that takes tried and true gameplay mechanics and molds them into something completely new.
In traditional tower defense games, you defend against hordes of increasingly challenging enemies as they as they rush toward your stronghold. The more baddies you defeat, the more cash you earn, which allows you to upgrade your defenses and keep pace with the enemy's increasing speed and strength.
Those basics are present here, but instead of setting up turrets along a twisty path leading to your castle, Knights Onrush switches the axis and uses a 2D side-scrolling perspective. In lieu of adding new turrets, you upgrade the castle itself.