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