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