Here is the full list of all 75 The Elder Scrolls V: Skyrim Special Edition achievements worth 1,550 gamerscore.
Defeat a Legendary Dragon
Acquire 11 vampire perks
Use the special power of Auriel's Bow
Complete "Lost to the Ages"
Acquire 11 werewolf perks
Tame and ride 5 dragons
Learn the secrets of 5 Black Books
Own a house in Raven Rock
Learn all 3 words of Dragon Aspect
Craft an item out of Stalhrim
Discover 30 locations on the island of Solstheim
Complete "At the Summit of Apocrypha"
Complete "The Path of Knowledge"
Complete "The Temple of Miraak"
Build three houses
Buy three plots of land
Complete 10 side quests
Collect 15 Daedric Artifacts
Pick 50 locks and 50 pockets
Adopt a child
Get married
Bounty of 1000 gold in all nine holds
Complete "Hail Sithis!"
Build three wings on a house
Complete "Bound Until Death"
Complete "Glory of the Dead"
Read 50 Skill Books
Reach Level 50
Learn 20 shouts
Join the Dark Brotherhood
Become a member of the Circle
Clear 50 dungeons
Join the Companions
Buy a house
Escape from jail
Learn all three words of Soul Tear
Complete "Kindred Judgment"
Complete 50 Misc Objectives
Complete "Beyond Death"
Returned the Thieves Guild to its former glory
Have 100,000 gold
Complete "Dragonslayer"
Complete "The Fallen"
Complete "Darkness Returns"
Get a skill to 100
Absorb 20 dragon souls
Complete "The Eye of Magnus"
Complete "Revealing the Unseen"
Find 13 Standing Stones
Complete "Elder Knowledge"
Complete "Alduin's Wall"
Capture Solitude or Windhelm
Reach Level 25
Successfully persuade, bribe, and intimidate
Capture Fort Sungard or Fort Greenwall
Discover 100 Locations
Join the Stormcloaks or the Imperial Army
Chop wood, mine ore, and cook food
Change your face
Complete "Diplomatic Immunity"
Make a smithed item, an enchanted item, and a potion
Learn all three words of a shout
Join the College of Winterhold
Acquire a Daedric Artifact
Complete "Awakening"
Arrive on Solstheim
Buy a plot of land
Join the Thieves Guild
Reach Level 10
Complete "The Way of the Voice"
Absorb a dragon soul
Complete "Bleak Falls Barrow"
Reach Level 5
Select a Standing Stone blessing
Complete "Unbound"