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