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