Pass the last level with maximum gauntlet corruption.
Unlock every other achievement.
Beat the game without swapping to your clone more then 10 times.
Beat the game without touching your clone.
Find the soulcasting artifact.
Return the artifact to the temple.
Beat the game without spawning more then 24 clones.
Beat the game in less then 12 minutes.
Beat the game in less then 6 minutes.
Pass the last level with gauntlet corruption.
Complete every level and beat the game.