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