Here is the full list of all 24 Lake of Voices achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
The dead cannot be revived
The only path
Continued forward no matter the loss
Suffered in silence
Remained sheltered from the reach of Nixi
Created a miracle
It almost could have been
Drowning in every drop
A fearful and reckless conclusion
Found one’s pride
Persevered through all the hurt
Became true partners
Escaped the void and returned to light
Protecting what matters until the end
Spirits were lifted together
Yet a way was found
That is all he ever says
Hearts were eased with someone special
The price one must pay
Stepped foot on the bridges of Sinnlos