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