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