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