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.
Reach Level 50
Learn 20 shouts
Complete "Glory of the Dead"
Bounty of 1000 gold in all nine holds
Capture Solitude or Windhelm
Capture Fort Sungard or Fort Greenwall
Join the Stormcloaks or the Imperial Army
Collect 15 Daedric Artifacts
Get married
Successfully persuade, bribe, and intimidate
Complete "Hail Sithis!"
Have 100,000 gold
Escape from jail
Complete "Bound Until Death"
Join the Dark Brotherhood
Returned the Thieves Guild to its former glory
Pick 50 locks and 50 pockets
Complete "Darkness Returns"
Join the Thieves Guild
Become a member of the Circle
Join the Companions
Complete "Dragonslayer"
Complete "The Fallen"
Complete "Elder Knowledge"
Complete "Alduin's Wall"
Complete "Diplomatic Immunity"
Complete 10 side quests
Read 50 Skill Books
Clear 50 dungeons
Absorb 20 dragon souls
Get a skill to 100
Complete 50 Misc Objectives
Reach Level 25
Make a smithed item, an enchanted item, and a potion
Find 13 Standing Stones
Acquire a Daedric Artifact
Discover 100 Locations
Learn all three words of a shout
Complete "The Eye of Magnus"
Complete "Revealing the Unseen"
Buy a house
Complete "The Way of the Voice"
Reach Level 10
Join the College of Winterhold
Reach Level 5
Chop wood, mine ore, and cook food
Complete "Bleak Falls Barrow"
Absorb a dragon soul
Select a Standing Stone blessing
Complete "Unbound"
Arrive on Solstheim
Complete "The Temple of Miraak"
Complete "The Path of Knowledge"
Complete "At the Summit of Apocrypha"
Learn all 3 words of Dragon Aspect
Learn the secrets of 5 Black Books
Craft an item out of Stalhrim
Tame and ride 5 dragons
Own a house in Raven Rock
Discover 30 locations on the island of Solstheim
Complete "Awakening"
Complete "Beyond Death"
Complete "Kindred Judgment"
Complete "Lost to the Ages"
Learn all three words of Soul Tear
Use the special power of Auriel's Bow
Acquire 11 werewolf perks
Acquire 11 vampire perks
Change your face
Defeat a Legendary Dragon
Adopt a child
Buy a plot of land
Build three wings on a house
Buy three plots of land
Build three houses