Changes
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The creature phase is similar in gameplay to the cell phase, but there are several important differences. Principally, the environment is now truly 3D. There will be other creatures inhabiting the world and most, if not all, of them will have been created by other players. Creatures will be seeded into the player's environment according to certain factors, in order to retain a balanced ecosystem. The game will also download creatures in relation to how strong the player's creature is. If the player creates a bigger, tougher creature, the predators that are downloaded will likewise be stronger than average predators. Creatures' characteristics are categorized with a 5 star rating system in six areas: Speed, Stealth, Defense, Social, Cuteness, and Attack. The creature also gains the ability to perform actions, such as "Call" and "Jump".
In this stage, the basic goal is the same: hunt food to earn DNA points, reproduce, and avoid being eaten by predators. Unlike the asexual reproduction in the cell phase, the player must now locate a mate. Once the player's creature has laid an egg, it does not hatch right away; scavengers will attempt to steal the eggs and the player must defend them (conversely, the player may steal and eat other creatures' eggs as well, if they can get past their hostile parents). Before the egg hatches, the player will have the opportunity to 'evolve' their creature via the creature editor, which can be done by spending DNA points to buy body parts. When the egg hatches, the player controls a baby version of the creature that spawned it. Aesthetically, this version of the creature will be smaller, with certain features exaggerated such as the head, and have a higher pitched voice. "The Science Behind Spore" video featured a monstrous creature taller than a tree threatening a city, indicating one of the scale possibilities of creatures.