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