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