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