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