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