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