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