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