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