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