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