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