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