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