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