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