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