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