Start as a fish, and eat to advance in the underwater food chain.
Some of the animals include:
Fish, Crab, Jellyfish, Squid, Seagull, Sting Ray, Penguin, Dolphin, Shark, Killer Whale, Whale... each with its own powers and characteristics!
More animals and places are going to be added in the future!
Deeeep.io is similar to Mope.io, but under the sea and with a simpler gameplay.