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