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