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