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