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