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