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