You are the Eye of the Summoner. Protect your tower from the fiendish hordes of paladins attempting to destroy it. Summon your beloved creatures of the darkness and fight to keep the flame of your beacon alive for as long as possible. Collect gold from the battlefield to produce more fighters and repel the righteous invaders.

You start your mission with three different units, each with its perks and weaknesses: the Shielder, slow but steady, is ideal for defending; the Scout, fast but weak, is great for collecting gold; and the Blitzer, strong but reckless, is good for attacking in groups.
Recycle the souls of your enemies to create new and stronger units to contrast the ever-growing menace of those arrogant knights.