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