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