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