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