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