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