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