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