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