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