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