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