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