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