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