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