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