The Appalese Wall

http://www.fogamer.com/strategy/the-appalese-wall/
In this top-down RPG/Defense game, you control abattalion of heroes whose task is to stop wave after wave of free-moving and cooperative monsters. Gameplay is real-time, tactical, and intense. But, you will also have to succeed strategically, selecting a battalion of up to 3 heroes from a possible 7, and growing their attributes and abilities effectively.