Destiny 2 has 23 achievements worth 1,240 gamerscore.The base game contains 13 achievements worth 1,000 Gamerscore, and there is 1 DLC packs containing 10 achievements worth 240 Gamerscore.
Achievements they've won
Achievements they've not won
Encounter an Agent of the Nine somewhere in the system.
Acquire each Warlock subclass.
Complete a Nightfall strike.
Acquire each Titan subclass.
Collect 15 Red War exotic weapons or armor.
Complete 30 challenges.
Complete a Flashpoint on Earth, Titan, Nessus, or Io.
Complete Shaxx's Call to Arms.
Reach level 20.
Acquire each Hunter subclass.
Complete a Heroic public event.
Complete the Leviathan raid.
Complete the Leviathan raid on Prestige difficulty.
Collect 10 Forsaken Exotic weapons or armor.
Pursue Uldren and the Fanatic to the Watchtower, and finish what you started.
Complete an Exotic Quest.
Win a Gambit match.
Enter the Dreaming City.
Earn 5,000 Triumph points.
Complete a Triumph Seal.
Complete a Collections Badge.
Defeat a Forsaken Nightfall Boss.
Complete the "Last Wish" Raid.