Defender of Blood play online

An arcade game, the goal of which is to protect the blood cell (erythrocyte) from massive attacks by bacteria and other enemies trying to take possession of vital oxygen. With the help of symbiosis - an erythrocyte and a modified leukocyte (protective cell), you have to use all your ingenuity and quick reaction to resist these enemies.
You will control a modified protective organism (leukocyte), as well as the ability to improve the characteristics of the entire symbiosis, such as speed, hardness, resistance, or even the amount of oxygen carried, which in turn will increase or decrease survival.
Immerse yourself in the microcosm, where everything will depend only on your reaction speed and on the correctness of your decisions, towards the recovery of the whole organism, which suffers from an unknown disease.