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