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 "The Fallen"
Complete "Elder Knowledge"
Chop wood, mine ore, and cook food
Complete "The Eye of Magnus"
Complete "Revealing the Unseen"
Read 50 Skill Books
Learn 20 shouts
Complete "Glory of the Dead"
Clear 50 dungeons
Absorb 20 dragon souls
Complete "Alduin's Wall"
Complete "Hail Sithis!"
Complete "Bound Until Death"
Join the Dark Brotherhood
Capture Solitude or Windhelm
Capture Fort Sungard or Fort Greenwall
Become a member of the Circle
Join the Stormcloaks or the Imperial Army
Complete 10 side quests
Reach Level 25
Discover 100 Locations
Complete 50 Misc Objectives
Complete "Diplomatic Immunity"
Complete "Darkness Returns"
Join the Thieves Guild
Get married
Successfully persuade, bribe, and intimidate
Buy a house
Acquire a Daedric Artifact
Reach Level 10
Learn all three words of a shout
Make a smithed item, an enchanted item, and a potion
Join the College of Winterhold
Complete "The Way of the Voice"
Absorb a dragon soul
Complete "Bleak Falls Barrow"
Reach Level 5
Join the Companions
Select a Standing Stone blessing
Complete "Unbound"
Complete "Dragonslayer"
Returned the Thieves Guild to its former glory
Pick 50 locks and 50 pockets
Find 13 Standing Stones
Escape from jail
Bounty of 1000 gold in all nine holds
Have 100,000 gold
Get a skill to 100
Collect 15 Daedric Artifacts
Reach Level 50
Tame and ride 5 dragons
Complete "At the Summit of Apocrypha"
Complete "The Path of Knowledge"
Complete "The Temple of Miraak"
Arrive on Solstheim
Learn all 3 words of Dragon Aspect
Learn the secrets of 5 Black Books
Craft an item out of Stalhrim
Own a house in Raven Rock
Discover 30 locations on the island of Solstheim
Complete "Awakening"
Change your face
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
Acquire 11 vampire perks
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