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