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