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