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