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