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
Yet a way was found
Continued forward no matter the loss
That is all he ever says
Persevered through all the hurt
Became true partners
Escaped the void and returned to light
Created a miracle
Hearts were eased with someone special
Drowning in every drop
Protecting what matters until the end
Spirits were lifted together
A fearful and reckless conclusion
Remained sheltered from the reach of Nixi
It almost could have been
Suffered in silence
The price one must pay
Stepped foot on the bridges of Sinnlos