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