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