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