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.
Complete "Hail Sithis!"
Complete "Bound Until Death"
Join the Dark Brotherhood
Returned the Thieves Guild to its former glory
Chop wood, mine ore, and cook food
Have 100,000 gold
Complete "Dragonslayer"
Complete "The Fallen"
Complete "Elder Knowledge"
Learn 20 shouts
Reach Level 50
Make a smithed item, an enchanted item, and a potion
Capture Solitude or Windhelm
Capture Fort Sungard or Fort Greenwall
Complete "Darkness Returns"
Find 13 Standing Stones
Complete "Alduin's Wall"
Complete "Diplomatic Immunity"
Complete "The Eye of Magnus"
Join the Thieves Guild
Complete "Revealing the Unseen"
Get a skill to 100
Absorb 20 dragon souls
Successfully persuade, bribe, and intimidate
Complete 10 side quests
Read 50 Skill Books
Reach Level 25
Get married
Join the College of Winterhold
Clear 50 dungeons
Learn all three words of a shout
Join the Stormcloaks or the Imperial Army
Complete "Glory of the Dead"
Discover 100 Locations
Acquire a Daedric Artifact
Complete 50 Misc Objectives
Complete "The Way of the Voice"
Buy a house
Reach Level 10
Become a member of the Circle
Join the Companions
Absorb a dragon soul
Complete "Bleak Falls Barrow"
Reach Level 5
Select a Standing Stone blessing
Complete "Unbound"
Pick 50 locks and 50 pockets
Escape from jail
Bounty of 1000 gold in all nine holds
Collect 15 Daedric Artifacts
Complete "At the Summit of Apocrypha"
Learn all 3 words of Dragon Aspect
Learn the secrets of 5 Black Books
Complete "The Path of Knowledge"
Complete "The Temple of Miraak"
Discover 30 locations on the island of Solstheim
Own a house in Raven Rock
Arrive on Solstheim
Craft an item out of Stalhrim
Tame and ride 5 dragons
Acquire 11 werewolf perks
Change your face
Use the special power of Auriel's Bow
Learn all three words of Soul Tear
Complete "Kindred Judgment"
Complete "Beyond Death"
Complete "Awakening"
Complete "Lost to the Ages"
Acquire 11 vampire perks
Defeat a Legendary Dragon
Buy three plots of land
Build three wings on a house
Buy a plot of land
Adopt a child
Build three houses