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