Full list of all 51 Destiny achievements worth 1,250 gamerscore. It takes around 150-200 hours to unlock all of the achievements in the base game on Xbox 360.
The base game contains 41 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 10 achievements worth 250 Gamerscore.
Attain Vanguard Rank 3.
Earn Vanguard Rank 1.
Obtain and equip a piece of Exotic gear.
Have all armor and weapon slots equipped with Legendary or Exotic gear.
Register 25 kills in PvP with heavy weapons.
Earn the highest tier of completion in 10 public events.
Assist in capturing 50 capture points in Control.
Earn Crucible Rank 1.
Fully upgrade a Warlock Subclass.
Kill 100 Titans in PvP.
Complete a Strike without anyone in your fireteam dying.
Kill 25 Cabal with precision shots in 1 mission without dying.
Earn a first strike kill in PvP.
Kill 100 Warlocks in PvP.
Kill 100 Hunters in PvP.
Kill a Hunter, Titan, and Warlock without dying in a PvP match.
Inspect another player.
Decrypt 25 Engrams.
Kill 25 Vex with precision shots in 1 mission without dying.
Attain a Grimoire score of 777.
Dismantle 50 pieces of armor or weapons.
Kill 25 Hive with precision shots in 1 mission without dying.
Kill 25 Fallen with precision shots in 1 mission without dying.
Resurrect 5 fallen players.
Complete a Strike.
Reverse a decision you made in an upgrade grid.
Kill a champion of the Dark.
Kill 5 enemies in 3 seconds.
Rebuild a Jumpship.
Obtain and equip a new personal vehicle.
Assist in capturing 20 capture points in Salvage.
Complete a Raid.
Complete a Raid with a full fireteam consisting of only your clan members.
Complete a Raid on hard difficulty.
Complete a Raid without anyone in your fireteam dying.
Complete a Strike with a full fireteam consisting of only your clan members.
Discover 50 dead ghosts.
Fully upgrade a Hunter Subclass.
Fully upgrade a Titan Subclass.
Fully upgrade an Exotic weapon.
Fully upgrade a Legendary weapon.
Complete "The Taken King" quest.
Complete "The Court of Oryx" quest.
Complete "The Old Hunger" quest.
Complete the "Echoes of Oryx" quest.
Complete "The Stormcaller's Path" quest.
Complete "The Sunbreakers' Challenge" quest.
Complete "The Nightstalker's Trail" quest.
Complete "The Wolves of Mars" quest.
Complete the King's Fall Raid.
Complete the King's Fall Raid (Heroic).