https://aedifexgames.itch.io/abysm
Abysm is a diving game where you dive through a randomly generated abyss. There are 6 different biomes: Oil Rig, Lost City, Mad Laboratory, Kelp Forest, Gem Cave, and Nuclear Wastes. Dodge enemies and obstacles as your oxygen slowly goes down, pick up bubbles to refill it. You have 3 abilities to choose from: Jet, Harpoon, and Saw, they all cost oxygen to use, but can give you the upper hand in a tricky situation. While diving you will find plastic bottles floating around, pick them up to help clean up the ocean and upgrade your abilities.
How deep can you go?
Source: itch.io