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