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