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