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