Here is the full list of all 23 Puddle achievements.
Reach the end of the Nuclear power plant chapter.
Make sure your fire engine remains undamaged.
Push the bulb inside the droseras making sure not to drop any particles.
Reach the end of the Foundry chapter.
It's time for the crash test.
Reach the end of the Rocket chapter.
Reach the end of the Sewers chapter.
Reach the end of the Human body chapter.
Don't trigger any nausea during the Slightly acid level.
Reach the end of the Laboratory chapter.
Never give up! Keep trying again and again!
Finish a level with exactly the right amount of liquid.
Reach the end of the Nursery chapter.
Who's behind the scene??
Reach the end of the Watercourse chapter.
Take the shortcut in the level Wastewater.
Welcome to Puddle game!
Finish all levels.
Earn 48 gold medals.
Finish a level after at least 10 nitroglycerine explosions.
Keep you glass ball intact in the Tahiti level.
Keep all your liquid in the tank from the 2011 vintage level.
Finish the Nova level by only turning in one direction.