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