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