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