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