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