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