You are Morax, a demon and denizen of hell with aspirations of power. In order to reach your goal, you will need to battle and dethrone your brother: Murmur. With the Moon on your side, the ability to enter the Spirit Realm and an army of lesser demons behind you, you prepare for war... Summons units and go for victory!
Use hotkeys to buy units and upgrades. Arrow keys to move, A to attack, S to use shield, D to regenerate health by eating your own infantry. Bring up shield and press A key to make a combo attack. Collect souls from the spirit realm to buy upgrades and use the combo attack.