The main goal in Bacterial Takeover is to destroy as many planets as possible.
Attacking a planet uses up all bacteria, Colonies, and nanobots and resets bacteria upgrades. Destroying planets unlocks new upgrades and features, such as colony irradiation or nanobot production.
A planet counts as destroyed if its remaining population has been reduced to 0. Killing a percentage of a planet's population earns gene strands and there is no limit to how many times the player can attack one planet to destroy it.
However, it's not possible to attack a planet if the player cannot gain even one gene strand or if he has less than 1 bacteria.
Each subsequent planet increases in population and defenses.
There is no known limit to how many planets there are in the game.
Population
Defenses
Currently, there are two types of planet defenses: nanobot resistance and antibacterial shields.
Nanobot Resistance
Nanobot resistance reduces the effectiveness of nanobots. There are four tiers of nanobot resistance: none, low, medium, high.