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