Take on the dark adventures in Abyssal Fish. Under the water in 1000m and more, there is only a darkness-pitch black. And a fairly large and diverse life as well. Now you can find out how it looks and try to survive for as long as possible. Without the light, the living is hard, so you've decided to live in symbiosis with the fishes that emit light, at least enough to see a few centimeters ahead of you. Avoid obstacles, collect boosts and other bright fish. Then you can exchange fishes for upgrades. Have fun.