Here is the full list of all 23 Candle achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Complete Act 3
Ignite all the fire spots throughout the adventure
Win the game and do not lose more than 1 token
Remember to turn off your candle while you are hidden
Fire is not always your ally
This rings a bell...
Complete Act 2
Survive underwater for over a minute
Monkeys don't want to be disturbed
Jumping is not always possible
Complete Act 1
Escape from a chasing Wakcha
Jump over a Wakcha
Drop from a high spot and stay alive
I'm sure this is not what you wanted to do here...
Think carefully how to protect yourself from that rock
Your journey is just beginning...
Use the light burst power of your candle to unveil a hidden painting
Spread the blue fire as much as possible
Your candle is not THAT powerful
A mother always protects her children
Try to confront the monster on your own
Fall into the same trap twice