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