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