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