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