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