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