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