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