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