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