Deeeep.io

Deeeep.io is a multiplayer ocean survival game where you start as a tiny fish and evolve through the marine food chain. Eat food like plankton, algae, and smaller creatures to gain experience, then transform into progressively larger and more powerful animals. The ocean is ruthless—bigger creatures hunt you while you hunt smaller prey, creating an intense battle for survival across different ocean zones.

Developed by Federico Mouse and released in October 2016, this browser-based .io game has become one of the most popular ocean evolution games online. With over 100 playable creatures including sharks, dolphins, whales, jellyfish, and even seagulls, each species has unique abilities and habitat requirements. If you enjoy survival .io games, check out Stabfish.io for fast-paced underwater combat, or explore our collection of fishing games.

Deeeep.io divides the ocean into different zones: shallow water, deep ocean, cold arctic regions, and swamp areas. Each creature can only survive in specific zones. For example, a clownfish must stay in shallow waters—if it swims too deep, it suffocates. Penguins can walk on land but cannot dive into deep waters. This creates strategic decisions: do you stay safe in your zone, or risk entering hostile territory for better food?

Temperature matters too. Warm-water creatures die in arctic zones, and cold-water creatures overheat in tropical areas. Pay attention to the warning indicators at the edge of your screen—they tell you when you are entering a dangerous zone. This mechanic forces you to choose evolution paths carefully, as each animal specializes in different habitats.

In the first few minutes, focus entirely on eating food particles and avoiding other players. Do not chase other fish early—you are too weak to fight. Stay near terrain like rocks or coral reefs where you can hide quickly if a predator approaches. Once you reach tier 3 or 4, you can start hunting smaller creatures, but stay cautious until you evolve into tier 6+.

The boost bar refills by eating food. Save your boost for escapes, not chasing—predators will use terrain and ambushes to trap you. When fleeing, boost in unpredictable directions and use narrow passages to lose pursuers. Advanced animals have special abilities instead of boost: whales can suck in prey, sharks can bleed opponents, and jellyfish can stun. Learn your animal's ability before committing to fights.

Deeeep.io runs smoothly in modern browsers on both desktop and mobile devices. An Android app is also available. Desktop players have an advantage due to precise mouse control, especially for dodging and using abilities. Mobile players should enable touch controls in settings and practice swiping for quick direction changes.

The game uses HTML5 canvas rendering, so performance depends on your device. If you experience lag, lower the graphics quality in settings or close other browser tabs. The game saves no progress locally—each session is a fresh start, which keeps the competition fair.

Deeeep.io is a multiplayer online game where you compete against real players worldwide. There is no chat system, which eliminates toxic behavior and makes the game safe for all ages. No personal information is required to play—just choose a nickname and dive in. The game has no pay-to-win mechanics; skill and strategy determine success.