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