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