Here is the full list of all 7 Remnants Of Isolation achievements.
Leave the castle hand in hand under 1:30 hours.
Hone your powers to unmatched levels.
Uncover all traces of humanity that once walked these nightmarish halls.
Seal away the castle at the cost of eternal loneliness.
Keep the promise to Celesta.
Through the sacrifice of your partner, you can finally walk free.
Command the power of all elements.