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