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