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