Here is the full list of all 19 Shardlight achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
An age of uncertainty, but of happiness.
You maintained the status quo.
You completed the game.
Tip your hat to the new revolution.
You don't mind being poked and prodded.
Tasty, but think of your triglycerides!
You're the most well-read person around.
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.
Properly disposed of the severed arm.
You couldn't let a friend suffer.
Played through the game with commentary.
Said the code phrase to everyone.
Gain Jess's trust.
Figure out why the rebel doesn't speak.
Listen to every single comment Denby makes inside the factory.
Don't encourage him.
Nothing like a nice hot meal.