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