Here is the full list of all 12 Red Goddess: Inner World achievements.
Complete Act IV.
Overcome your demons.
Complete Act III.
Complete Act II.
Destroy 15 enemies using Fear's special melee attack.
Collect 500 gold.
Destroy 15 enemies using Rage's special melee attack.
Collect 300 gold.
Complete Act I.
Destroy 30 enemies using possession ability.
Perform 100 combos.
Perform 60 combos.