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