Battle Chasers: Nightwar

Each “dungeon” has 3 difficulty choices, legendary being the “hardest”. Each dungeon is scaled to about the level you should be when you get to it with natural progression. The easiest way the to get this achievement is to beat a dungeon on which ever setting is easiest for you and then come back to that dungeon later when you are a substantially higher level. The legendary mode will no longer be listed as “hard” or “impossible” but as “easy”. Achievement will pop upon completion of dungeon.