What is established
Steam calls the setting post-apocalyptic and describes Jericho as desolate, with crumbling buildings and overgrown vegetation. It also characterizes the world as harsh and unforgiving.
Turn atmosphere into a safe approach
Use that framing to be deliberate: learn a space before extending a run, preserve resources for recovery, and treat a retreat as information rather than failure.
Source
Official Steam listing (retrieved July 23, 2026).
Q: Are these survival rules official?
They are planning advice; the setting facts come from Steam.