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