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