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