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