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