Deeep.io, an ocean-based free to all io game. You can compare it to mope.io because your primary objective is to climb up the food chain, and rule the ocean. To increase your survival chances, you start underwater as a human.
Deep is a place where survival is your primary objective. It can be difficult to get started in this underwater world because many people have already made their way up the food chain. But don’t worry, there are plenty of options for those who want to learn! You will eat food and your xp bar will fill up. Once it fills, your character will transform into a different creature with different traits. You should also keep an eye on the oxygen meter as some animals cannot breathe under water infinite, such as the seagull. However, they can fly above water to replace this. You should remember that sharks are not allowed to eat players who are larger than you.
You can navigate with the mouse, and the space bar to move forward. This can be helpful for closing the distance between you and your enemy, or allowing you to catch up to them.