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