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