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