The Appalese Wall
The Appalese Wall is a top-down RPG-Defense game which you control a battalion 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. Much fun!
See in-game tutorial.