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