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