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