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