The Radio is an item you can acquire in Alive in Shelter.
There are two purposes for the Radio:
- Messages to let you know of things - The Radio can provide forecasts and such. Examples would be: "Tomorrow rain will attack us..." would obviously signify that rain will come the next day. "Attackers are everywhere!" would signify that attackers (if it says "Something is there?", etc. ) will attack the next day if you keep the trapdoor open (should it let you know that something or someone is there), etc.
- Light Signal - The radio is a critical item in Alive in Shelter because it tells you when to give a light signal to get you to the "Army" Ending.