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