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