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