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