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.
Have 100,000 gold
Join the Dark Brotherhood
Absorb 20 dragon souls
Complete "Diplomatic Immunity"
Reach Level 50
Returned the Thieves Guild to its former glory
Complete "Glory of the Dead"
Join the College of Winterhold
Clear 50 dungeons
Learn all three words of a shout
Join the Stormcloaks or the Imperial Army
Get a skill to 100
Complete "Darkness Returns"
Complete 10 side quests
Escape from jail
Make a smithed item, an enchanted item, and a potion
Pick 50 locks and 50 pockets
Read 50 Skill Books
Discover 100 Locations
Successfully persuade, bribe, and intimidate
Get married
Join the Thieves Guild
Reach Level 25
Complete 50 Misc Objectives
Buy a house
Acquire a Daedric Artifact
Become a member of the Circle
Complete "The Way of the Voice"
Reach Level 10
Absorb a dragon soul
Complete "Bleak Falls Barrow"
Select a Standing Stone blessing
Reach Level 5
Chop wood, mine ore, and cook food
Join the Companions
Complete "Unbound"
Complete "Alduin's Wall"
Complete "Elder Knowledge"
Complete "The Fallen"
Complete "Dragonslayer"
Complete "Revealing the Unseen"
Complete "The Eye of Magnus"
Complete "Bound Until Death"
Complete "Hail Sithis!"
Capture Fort Sungard or Fort Greenwall
Capture Solitude or Windhelm
Find 13 Standing Stones
Bounty of 1000 gold in all nine holds
Collect 15 Daedric Artifacts
Learn 20 shouts
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"
Change your face
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
Defeat a Legendary Dragon
Buy three plots of land
Build three wings on a house
Buy a plot of land
Adopt a child
Build three houses