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
Get a skill to 100
Complete "Bound Until Death"
Get married
Complete 10 side quests
Capture Solitude or Windhelm
Complete "The Eye of Magnus"
Complete "Revealing the Unseen"
Clear 50 dungeons
Complete "Dragonslayer"
Complete "The Fallen"
Capture Fort Sungard or Fort Greenwall
Complete "Glory of the Dead"
Acquire a Daedric Artifact
Complete "Elder Knowledge"
Complete 50 Misc Objectives
Make a smithed item, an enchanted item, and a potion
Reach Level 25
Absorb 20 dragon souls
Join the Thieves Guild
Join the Stormcloaks or the Imperial Army
Join the Dark Brotherhood
Find 13 Standing Stones
Complete "Alduin's Wall"
Discover 100 Locations
Join the College of Winterhold
Successfully persuade, bribe, and intimidate
Complete "Diplomatic Immunity"
Buy a house
Become a member of the Circle
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 "Darkness Returns"
Returned the Thieves Guild to its former glory
Complete "Hail Sithis!"
Chop wood, mine ore, and cook food
Pick 50 locks and 50 pockets
Escape from jail
Bounty of 1000 gold in all nine holds
Have 100,000 gold
Read 50 Skill Books
Collect 15 Daedric Artifacts
Reach Level 50
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
Complete "Awakening"
Complete "Beyond Death"
Complete "Kindred Judgment"
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
Build three wings on a house
Buy a plot of land
Adopt a child
Buy three plots of land
Build three houses