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