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