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