"An emergency survival whistle. Could save your life... Probably won't."
The whistle is a loot item found in Stranded Deep. Whistles can be found stored inside hard cases and lockers contained within shipwrecks. Once acquired, the player is then able to use the whistle (default 'LMB'), producing a high-frequency sound.
The whistle currently holds no real purpose in the game; in future updates, the whistle may be used to either scare away predators or attract and lead them to the player's location.
- Like other loot items, despite spending a considerable amount of time inside underwater shipwrecks, the whistle manages to remain almost completely well-preserved, to the point where it is able to be used without any fault whatsoever.