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