Play the bad guy - a ruthless Overlord with the combined might of orcs, undead, and demons at your command. Wave after wave the self-appointed heroes want to take your Gems. Set your defenses, build your strategy and destroy them!
Instructions: Build and upgrade towers and cast spells to destroy the heroes that try to steal your gems. Withstand all the enemy waves on each level and save at least one gem to win. You gain experience and levels while playing and unlock useful skills to make you stronger.