Deeeep.io is a deep-sea evolution game in which you start as a small fish and progress by consuming smaller fish and other available food. Growth changes your position in the food chain, while encounters with other animals require attention to health, damage, movement, and each creature’s abilities.
Animal attributes and combat
Animals are physical entities that can collide, receive knockback, take damage, and lose health points. Their statistics vary by animal and can include health, damage, movement speed, boost capacity, size, armor, armor penetration, bleed reduction, lifesteal, and damage reflection.
Animals can also be affected by status effects. These differences make each animal handle attacks and movement in its own way rather than sharing identical combat values.
Active and passive abilities
Most animals have special abilities divided into active and passive types. Active abilities must be triggered through a charge boost or a normal boost that has been altered for the ability. Examples include the Orca’s grab and the Napoleon Wrasse’s dash.
Passive abilities remain active without a separate trigger. The source gives the buffs from Manta’s animals and Cachalot’s increased speed in deeper water as examples of this type of ability.
Habitats, food, and survival
Each animal is suited to particular habitats. Entering an unsuitable environment gradually depletes a relevant status bar, such as oxygen, pressure, salinity, or temperature. If the condition continues, the animal takes damage and eventually dies.
Food restores health and boost, making it important for continued survival. When an animal is threatened, it can also use certain environmental props as temporary shelter. Approaching one of these props can make the animal transparent and prevent collisions for a short time, forcing a predator to search elsewhere.
Movement and encounters
The source describes encounters with other players and situations involving piranhas, including free-for-all underground waterfall areas. Piranhas can be spread out while catching food or pursuing a target. Air boosting is described as the quickest escape option when fleeing, and charging a boost can help regenerate piranhas while crossing the non-swamp area.
Against opponents, the supplied guidance recommends using surprise attacks when a target is unprepared or has little boost available. When chasing, an air boost used almost parallel to the water can spread piranhas and make it harder for the target to escape. Pinning an opponent against a wall can also limit how effectively they attack the surrounding piranhas.
Piranhas may struggle against larger top-tier animals in a direct exchange, so working with others or relying on third-party encounters is suggested. The source also advises avoiding creatures with splash damage and choosing to flee or remain friendly instead of attacking them directly.
Ocean and land travel
The game includes movement through ocean areas and onto land. Land creatures such as seagulls can still pose a threat, so traveling outside the water does not remove the need to watch the surrounding food chain.