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