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