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