Guardians of Middle-earth. Smaug's Treasure.

A shadow grows over Middle-earth as the greatest armies of the Third Age prepare for the coming battle. Take up arms in the clash over Middle-earth as the most powerful heroes and villains from the greatest fantasy epic of all time.
Through this reward, claim the dragon Smaug's treasure. Earn a staggering 80,000 gold pieces for in-game use and collect a relic that boosts your in-game earned gold and experience.

Key from Raptr.com.

I will send a key via e-mail.