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