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