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