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