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