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