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