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