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