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