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