Friends Forever
Friends Forever requires you to Complete Unlikely Allies on equaled to or harder then Medium Difficulty.

Unlikely Allies is a challenge for the map Foundries and Forges. The premise of the challenge is the Crystal is an Ogre. The Ogre moves around the map and will attack mobs that are trying to kill him. Full Defense Units are available and you can attack mobs. The Ogre will push some towers around as he moves.

Related Achievements

A Challenger Approaches - Completed all Challenges on >= Medium Difficulty! Are you ready for INSANE?

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