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