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