Full list of all 65 Dragon Age II achievements worth 1,370 gamerscore. It takes around 60-80 hours to unlock all of the achievements in the base game.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 3 DLC packs containing 15 achievements worth 370 Gamerscore.
Reached Kirkwall with each character class across multiple playthroughs.
Sided with the mages five times.
Earned the Arishok's respect.
Allied yourself with the smugglers upon arriving in Kirkwall.
Completed Dragon Age II.
Completed Dragon Age II twice, or completed it once with a save imported from Dragon Age Origins.
Became the viscount of Kirkwall.
Defeated Meredith, knight-commander of Kirkwall's templars.
Completed a romance with one of your party members.
During each year in Kirkwall, discovered 3 secret messages from the Band of Three.
Found every variety of crafting resources.
Found and killed the ancient demon, Hybris.
Crafted all of the items from a single crafting tree.
Reached Level 20.
Completely upgraded the armor of one of your party members.
Found and killed a high dragon.
Earned the friendship or rivalry of four party members.
Found all four chapters of "The History of the Chantry," by Brother Genitivi.
Sided with the templars five times.
Defeated the Arishok.
Met Grand Cleric Elthina, Viscount Dumar, Knight-Commander Meredith, and First Enchanter Orsino.
Found and killed a varterral.
Found and killed the undying Xebenkeck.
Earned the rivalry of one of your party members.
Visited 10 caves in Kirkwall and the surrounding area.
Learned two class specializations.
Flirted with one of your party members to begin a romance.
Had 100 or more sovereigns in your purse.
Completed a full year in Kirkwall without any party member being knocked unconscious.
Defeated the rock wraith on your expedition into the Deep Roads.
Explored the Deep Roads.
Became a partner in a Deep Roads expedition.
Enchanted an item.
Mastered a weapon style.
Used teamwork to perform a cross-class combo.
Reached Level 10.
Unlocked 100 codex entries.
Opened 50 chests.
Recruited four party members.
Gave a gift to one of your party members.
Earned the friendship of one of your party members.
Kicked the slavers out of your ancestral mansion.
Upgraded the armor of one of your party members.
Left Kirkwall to explore the outlying regions.
Acquired your first crafting recipe.
Toggled the map from day to night.
Became a resident of Kirkwall.
Allied yourself with the mercenaries upon arriving in Kirkwall.
Upgraded a spell or talent.
Listened to Varric begin his tale of the Champion of Kirkwall.
Met secretly with the agent of the Divine
Earned either a friendship or rivalry with Sebastian.
Gave Sebastian a family heirloom.
Confronted the culprit behind the Vael family's murder.
Dealt with the mercenaries that killed the Vael family.
Completed the main quest in the Vimmark Mountains with Bethany or Carver in the party.
Defeated an ancient evil in the Vimmark Mountains.
Applied three effects to Hawke's Key.
Completed every side quest in the Vimmark Mountains prison tower.
Killed a genlock, genlock alpha, hurlock alpha, bronto, and deepstalker in the Vimmark Mountains.
Defeated Duke Prosper, with or without Tallis.
Disarmed the fire traps in Chateau Haine's vaults.
Evaded vault security in Chateau Haine.
Lured and killed an alpha wyvern near Chateau Haine.
Tallis joined the party.