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