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