Steam achievement didn't unlocked

[GoldPhoenix0]

This problem should be resolved if you restart Steam or Verify Integrity of Game Files on Steam.

See this thread for more information -

Steam achivment not unlocking

Hey @Zwiezda, this was a bug in the steam version of the game and required a client fix. If you restart Steam or Verify Integrity of Game Files on Gems of War, the achievement should be showing up with the correct progress stats.