Pillars of Eternity

Here is a list of quests you have to complete in order to get this achievement:
• Never Far from the Queen
• The Man Who Waits
• Undying Heritage
• Through Death’s Gate
• The Hermit of Hadret House

http://www.ign.com/wikis/pillars-of-eternity/Act_II

Here is a link to an IGN guide if you are having trouble.