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 "Alduin's Wall"
Have 100,000 gold
Complete "Diplomatic Immunity"
Capture Solitude or Windhelm
Read 50 Skill Books
Absorb 20 dragon souls
Capture Fort Sungard or Fort Greenwall
Learn 20 shouts
Complete 50 Misc Objectives
Complete 10 side quests
Get a skill to 100
Reach Level 25
Complete "Glory of the Dead"
Clear 50 dungeons
Acquire a Daedric Artifact
Become a member of the Circle
Join the College of Winterhold
Discover 100 Locations
Learn all three words of a shout
Join the Companions
Buy a house
Reach Level 10
Complete "The Way of the Voice"
Join the Stormcloaks or the Imperial Army
Chop wood, mine ore, and cook food
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"
Complete "Revealing the Unseen"
Complete "The Eye of Magnus"
Join the Thieves Guild
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
Successfully persuade, bribe, and intimidate
Find 13 Standing Stones
Escape from jail
Get married
Make a smithed item, an enchanted item, and a potion
Bounty of 1000 gold in all nine holds
Collect 15 Daedric Artifacts
Reach Level 50
Learn the secrets of 5 Black Books
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
Own a house in Raven Rock
Complete "The Temple of Miraak"
Arrive on Solstheim
Craft an item out of Stalhrim
Tame and ride 5 dragons
Change your face
Complete "Lost to the Ages"
Complete "Awakening"
Complete "Beyond Death"
Complete "Kindred Judgment"
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
Build three wings on a house
Buy a plot of land
Adopt a child
Buy three plots of land
Build three houses