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