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