Full list of all 75 The Elder Scrolls V: Skyrim achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there are 3 DLC packs containing 25 achievements.
Complete "Diplomatic Immunity"
Complete "Alduin's Wall"
Complete "Elder Knowledge"
Complete "The Fallen"
Complete "Dragonslayer"
Join the Companions
Become a member of the Circle
Complete "Glory of the Dead"
Join the Thieves Guild
Complete "Darkness Returns"
Returned the Thieves Guild to its former glory
Join the Dark Brotherhood
Complete "Bound Until Death"
Complete "Hail Sithis!"
Join the Stormcloaks or the Imperial Army
Successfully persuade, bribe, and intimidate
Find 13 Standing Stones
Escape from jail
Bounty of 1000 gold in all nine holds
Collect 15 Daedric Artifacts
Capture Solitude or Windhelm
Capture Fort Sungard or Fort Greenwall
Chop wood, mine ore, and cook food
Select a Standing Stone blessing
Have 100,000 gold
Read 50 Skill Books
Learn 20 shouts
Get married
Complete 10 side quests
Buy a house
Complete 50 Misc Objectives
Complete "The Eye of Magnus"
Complete "Revealing the Unseen"
Join the College of Winterhold
Clear 50 dungeons
Get a skill to 100
Pick 50 locks and 50 pockets
Absorb 20 dragon souls
Reach Level 50
Complete "The Way of the Voice"
Complete "Bleak Falls Barrow"
Discover 100 Locations
Acquire a Daedric Artifact
Complete "Unbound"
Reach Level 5
Reach Level 10
Reach Level 25
Learn all three words of a shout
Absorb a dragon soul
Make a smithed item, an enchanted item, and a potion
Complete "The Temple of Miraak"
Complete "The Path of Knowledge"
Complete "At the Summit of Apocrypha"
Learn all 3 words of Dragon Aspect
Learn the secrets of 5 Black Books
Craft an item out of Stalhrim
Tame and ride 5 dragons
Own a house in Raven Rock
Discover 30 locations on the island of Solstheim
Arrive on Solstheim
Complete "Awakening"
Complete "Beyond Death"
Complete "Kindred Judgment"
Learn all three words of Soul Tear
Use the special power of Auriel's Bow
Acquire 11 werewolf perks
Change your face
Acquire 11 vampire perks
Defeat a Legendary Dragon
Complete "Lost to the Ages"
Build three wings on a house
Adopt a child
Buy three plots of land
Build three houses
Buy a plot of land