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