Salvage Drone
The Salvage Drone progression increases the listed number of salvage uses from one at level 1 to three at level 3.
How it works
ESTNN says the drone can pull some fish out of the ocean and lists three levels: one salvage at level 1, two at level 2, and three at level 3. Level 1 is free; the listed later levels cost Gold. The passage does not explain deployment conditions or specify targets beyond fish.
Read the supporting references
A source-bounded reference to reported diving gear effects and named weapon upgrade paths, including prerequisites and progression rules. Staff skills and restaurant upgrade effects are outside the retrieved evidence. Guidance explains the referenced mechanics; it is not a tested damage ranking. Check the stated edition and source version before applying a patch-specific detail.