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