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