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