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.
Found one’s pride
The dead cannot be revived
The only path
Continued forward no matter the loss
Suffered in silence
Created a miracle
Escaped the void and returned to light
Drowning in every drop
A fearful and reckless conclusion
It almost could have been
Persevered through all the hurt
Became true partners
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
Remained sheltered from the reach of Nixi