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