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