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