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