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.
Collect 15 Daedric Artifacts
Get married
Complete "Dragonslayer"
Complete "The Fallen"
Complete "The Way of the Voice"
Complete "Alduin's Wall"
Complete "Diplomatic Immunity"
Learn all three words of a shout
Complete "Elder Knowledge"
Acquire a Daedric Artifact
Complete "The Eye of Magnus"
Complete "Darkness Returns"
Complete "Revealing the Unseen"
Join the College of Winterhold
Become a member of the Circle
Complete "Bound Until Death"
Complete "Hail Sithis!"
Complete "Glory of the Dead"
Join the Dark Brotherhood
Join the Thieves Guild
Complete 10 side quests
Complete 50 Misc Objectives
Returned the Thieves Guild to its former glory
Successfully persuade, bribe, and intimidate
Discover 100 Locations
Capture Solitude or Windhelm
Escape from jail
Capture Fort Sungard or Fort Greenwall
Absorb a dragon soul
Buy a house
Complete "Bleak Falls Barrow"
Select a Standing Stone blessing
Reach Level 50
Reach Level 25
Reach Level 10
Get a skill to 100
Have 100,000 gold
Join the Stormcloaks or the Imperial Army
Reach Level 5
Complete "Unbound"
Join the Companions
Chop wood, mine ore, and cook food
Pick 50 locks and 50 pockets
Find 13 Standing Stones
Make a smithed item, an enchanted item, and a potion
Bounty of 1000 gold in all nine holds
Clear 50 dungeons
Read 50 Skill Books
Absorb 20 dragon souls
Learn 20 shouts
Learn the secrets of 5 Black Books
Own a house in Raven Rock
Complete "At the Summit of Apocrypha"
Complete "The Temple of Miraak"
Complete "The Path of Knowledge"
Arrive on Solstheim
Learn all 3 words of Dragon Aspect
Craft an item out of Stalhrim
Tame and ride 5 dragons
Discover 30 locations on the island of Solstheim
Learn all three words of Soul Tear
Complete "Kindred Judgment"
Complete "Awakening"
Complete "Beyond Death"
Defeat a Legendary Dragon
Complete "Lost to the Ages"
Use the special power of Auriel's Bow
Acquire 11 werewolf perks
Acquire 11 vampire perks
Change your face
Buy a plot of land
Buy three plots of land
Adopt a child
Build three wings on a house
Build three houses