• CooperatorQuantity Starting quantity of cooperator type

• DefectorQuantity Starting quantity of defector type

• SdQuality Standard deviation of distribution from which an individual’s quality is generated

• Y Fraction of fitness lost that is used by individuals in the population

• Relatedness The assortment (“relatedness”) in the population

• PercentileCutoff Quality percentile cutoff for reproduction

• Z Used in computing confidence intervals

• MaxTimeSteps Maximum number of time steps to simulate in a run

• Runs Number of runs to simulate

• IncludeConfidenceIntervals Should confidence intervals be computed? true/false

In each time step, several tasks are performed based on one of several strategies. Here's a list of all the tasks and their corresponding strategies:

• Survival- Select one individual from the population to perish
  • EquiProbable - All individuals save the same probability of surviving
  • QualityProportional - All but one individuals are chosen to survive with their probability being proportional to their quality
  • FitnessProportional - All but one individuals are chosen to survive with their probability being proportional to their fitness
  • QualityInverselyProportional - One individual is chosen to perish with the probability being Inversely proportional to its quality
  • FitnessInverselyProportional - One individual is chosen to perish with the probability being Inversely proportional to its fitness
• Fitness - Defines how the Fitness value of an individual is computed
  • Default - The default fitness formula as written in the manuscript
  • NonReproducingHave0Fitness - Non reproducing cooperators are allotted 0 fitness
• Reproduction - Select one individual from the population to reproduce
  • FitnessProportional - The probability of an individual being chosen to reproduce is directly proportional to its fitness
• PostProcess - Some tasks to be more performed at the end of each time step
  • DoNothing - Nothing is done
  • Shuffle - The list of individuals is shuffled