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