Here is the full list of all 19 Shardlight achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
You completed the game.
An age of uncertainty, but of happiness.
Properly disposed of the severed arm.
You don't mind being poked and prodded.
Gain Jess's trust.
Tasty, but think of your triglycerides!
Nothing like a nice hot meal.
Figure out why the rebel doesn't speak.
Don't encourage him.
You're the most well-read person around.
You're never too old to have fun.
You maintained the status quo.
Tip your hat to the new revolution.
You couldn't let a friend suffer.
Played through the game with commentary.
Said the code phrase to everyone.
Gus doesn't know art, but he knows what he hates.
Listen to every single comment Denby makes inside the factory.
You drew the symbol correctly on the first try.