Omnivores are a type of diet that eat carcasses, eat berry bushes and plants, and drink water. If one food option is unavailable, they have the perk of being able to eat the other option (and unlike most real-like omnivores, won't get sick or ill if they only eat one source of food). To find the nearest food, use the H key (or Sniff button), and the same indicators for herbivore and carnivore will appear. All omnivores can scent fresh water, which appears as a blue line.

On Legacy, by using the T key (or the Drag Food button on mobile), omnivores can carry either a portion of edible plants, of meat (meat chunks are bugged in legacy), or, if the carcass is small enough, carry the whole thing. On Recode carrying all or a portion depends not only on the size but on pressing the pick up chunk button or the pick whole carcass button, and meat chunks are completely functional. Portions of meat rot much faster than whole carcasses.

Their designated Gacha is the Omnivores Gacha, but they may possibly be obtained from any other Gacha besides the Photovore Exploration Gacha, the Carnivores Gacha and the Herbivores Gacha as a rule.

There are currently 65 creatures of this diet in legacy.