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