It is essential for "winter storm" or "Cryogenic Winter" playthroughs where natural liquid water is scarce.
The phrase you are referring to typically points to a popular community-created mod for the survival game . Project Zomboid Mod: "Snow is Water" It is essential for "winter storm" or "Cryogenic
There are "Rainbarrel only" versions and "Project Realism" versions that focus on melting snow for drinking water. General Concept: Melting Snow for Water It is essential for "winter storm" or "Cryogenic