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