The amount of time in ticks a creature must wait between reproductions. Creatures can normally reproduce more than once in a lifetime, so the time limit between reproduction and the life span of the creature are used to define the maximum number of reproductions.

Each tick ReproductionWait will drop by one. Once the ReproductionWait reaches 0 one of the requirements the CanReproduce property will be met. Once a creature is capable of reproducing a call to BeginReproduction must be made to start incubation.