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