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