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