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