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