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