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