Here is the full list of all 23 Lightmatter achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Quantum superposition at the push of a button.
You can have your cake AND eat it!
Someone seems to be addicted.
Hey, Who Turned Out The Lights?
Faster than light.
I heard that tool is quite a hit.
Do you need a break?
Hey, don't kick that!
You saw it through to the very end.
The human body can survive 21 days without food.
I like cats.
You crossed paths with that four-legged fluff ball.
1095.3 burgers were consumed during this production.
Be careful with those photon connectors!
Didn't you sign the NDA?
Sometimes it's good to vent a bit.
Big Brother is watching you.
Thank you.
Remember to sign it once you get out.
Where are you going?
You pushed the button too hard.
Saving humanity.
Take good care of that lamp!