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