Attacking a The player can attack every planet an unlimited number of times until it is finally destroyed. A planet uses up all Bacteria and Nanobots, and resets colonies and bacteria upgradescounts as destroyed if its remaining population has been reduced to 0. Destroying planets unlocks new upgrades and featuresHowever, such as Colony irradiation it's not possible to attack a planet if the player cannot gain even 1 [[Gene Strands|Gene Strand]] or Nanobot productionif he has less than 1 [[Bacteria]].

A planet counts as destroyed if its remaining population has been reduced to 0. ==Rewards==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 1 Gene Strand or if he has less than 1 Bacteria]].