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