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