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