Get On My Level Achievement
Get On My Level10
Complete the game on any difficulty setting.
There are 4 difficulty modes to choose from.
You can play on any difficulty to get this. There are no "difficulty" related achievements. There are, however, "Mode" related achievements. You will have to play Hardcore Mode, Classic Mode, and Pure Survival Mode. See the related achievements for more descriptions on how to complete them. These different modes are set to the Hard difficulty setting automatically.