In this aquatic-themed puzzle game, the player takes on the role of a diver tasked with rescuing fish from a stagnant aquarium. The game begins with a seemingly ordinary aquarium, but as the player progresses, it becomes clear that something is amiss.
The player must navigate a series of increasingly complex aquatic environments to locate and free trapped fish. This involves solving puzzles, such as moving objects and redirecting water currents, to create a safe escape route. The ultimate goal is to rescue as many fish as possible, while also uncovering the mystery behind the aquarium's eerie and rapidly deteriorating conditions. The game runs directly in the browser, with no need for a download or registration, allowing players to dive in at any time and start exploring.