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