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