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