Ruling the Skies Challenge

"[In the future], most of the actual fighting will be done by small robots. And as you go forth today, remember always your duty is clear: To build and maintain those robots."

The Ruling the Skies was a challenge for the game Drone Wars that was released on May 22th, 2008 and lasted until May 29th, 2008. To complete it, the player had to complete arcade mode and score 2,000 points in survival mode. Completing the challenge would give the player the Necronomic Tome card.