Health

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Population Health

Population health in Captain of Industry represents the overall well-being of your colonists, influencing population growth, mortality, and Unity. A healthy population grows slowly, while negative health leads to colonist deaths. Health is affected by factors such as base health, services, pollution, and diseases. Managing health through clinics, Medical Supplies, and proper settlement planning is crucial for a thriving colony.

Health Mechanics

Population health is measured as a percentage (0% to 100%), with positive and negative values impacting growth and survival:

  • Population Growth: When health is positive, the population grows by 0.01% per 10 health points per month. Examples:
    • 20 health → 0.02% growth per month
    • 50 health → 0.05% growth per month
  • Population Loss: When health is negative (below 0%), colonists die at a rate of 0.10% per -1 health point per month. Examples:
    • -3 health → 0.30% loss per month
    • -10 health → 1.00% loss per month

Note: Growth and loss are applied as a net change to the birth rate, calculated monthly. If housing capacity is full, growth is paused until space is available.

Unity Bonus/Penalty

Health affects Unity production:

  • Positive Health: Grants a bonus of 0.02 × Health + 0.2 Unity per month. Examples:
  • Negative Health: Incurs a penalty of 0.02 × Health Unity per month. Examples:
    • -10 health → -0.2 Unity
    • -20 health → -0.4 Unity

Disease Outbreaks

Diseases periodically afflict your colony, reducing health and potentially causing mortality. Outbreaks occur naturally or due to specific triggers (e.g., low water supply, waste accumulation). The further you explore the map with The Ship, the more severe diseases you may encounter, as new diseases unlock based on exploration distance (e.g., Flu (deadly) requires 1700 distance units).

  • Frequency: Diseases occur every 3 to 6 years on average, with a minimum gap of 36 months and a maximum of 72 months between outbreaks. Early game (first 20 years or population < 300) has fewer outbreaks.
  • Difficulty Impact: On the hardest difficulty, disease mortality rates are doubled (100% increase), making mitigation critical.

Positive Health Factors

Several factors contribute to positive health:

  • Base Health: +10% (default, modified by difficulty or edicts)
  • Food Variability: Diverse food types (e.g., Vegetables, Meat) provide a health bonus. [Estimated: +5% to +15% depending on variety; clarification needed]
  • Water Access: Providing clean Water via water services boosts health. [Estimated: +5% to +10%; clarification needed]
  • Edicts: Certain Edicts (e.g., health-focused policies) increase health. [Examples: +5% to +20% or penalties up to -10%; clarification needed]
  • Medical Supplies: Clinics with Medical Supplies provide health bonuses and reduce mortality:
    • Medical Supplies: +15% health, 0.6% mortality reduction
    • Medical Supplies II: +20% health, 1.0% mortality reduction
    • Medical Supplies III: +25% health, 1.4% mortality reduction
    • Clinics prioritize the highest-tier supplies available, fully counteracting disease health penalties (e.g., -25% for Flu (deadly)) and mortality (e.g., 1.0% for Flu (deadly) on hardest difficulty) when using Medical Supplies III.

Negative Health Factors

Factors that reduce health include pollution, diseases, and other hazards:

  • Air Pollution: Health penalty based on Air Pollution released. See Air Pollution for details.
  • Water Pollution: Health penalty based on Water Pollution dumped. See Water Pollution for details.
  • Landfill Pollution: -1% health per 100 units of Waste dumped in landfills per month. [Estimated; exact value needed]
  • Diseases: See the Factor of Disease section for specific health penalties.
  • Radiation: Exposure to radiation reduces health or causes direct mortality. [Details needed: e.g., -X% health or Y% mortality per unit of exposure]

Factor of Disease

Diseases are a major health threat, causing health penalties and, in severe cases, mortality. Clinics mitigate these effects by consuming Medical Supplies to provide health bonuses and reduce mortality. During a disease, medical supply demand increases by 50%, requiring robust supply chains.

The table below lists all diseases, their base effects, and causes. On the hardest difficulty, mortality rates are doubled (e.g., Flu (deadly): 0.5% → 1.0%). Medical Supplies II or III are recommended to fully mitigate mortality on harder difficulties.

Disease Health Penalty File:Mortalityreduction.png Base Mortality File:Mortalityreduction.png Hardest Difficulty Duration (Months) Demand for Medical Supplies Cause
Cold -5% 0% 0% 8 +50% Naturally occurring
Flu (mild) -8% 0% 0% 6 +50% Naturally occurring
Flu (moderate) -12% 0.1% 0.2% 6 +50% Naturally occurring
Flu (severe) -15% 0.2% 0.4% 7 +50% Naturally occurring
Flu (very severe) -20% 0.3% 0.6% 8 +50% Naturally occurring
Flu (deadly) -25% 0.5% 1.0% 8 +50% Naturally occurring
Infection -15% 0.3% 0.6% 5 +50% Settlement full of waste
Cholera -20% 0.4% 0.8% 4 +50% Low water supply

Mitigation Strategies

To maintain positive health and minimize mortality:

  • Build Clinics: Ensure clinics are fully stocked with Medical Supplies III to maximize health (+25%) and mortality reduction (1.4%), fully counteracting severe diseases like Flu (deadly) and Cholera.
  • Manage Pollution: Reduce Air Pollution, Water Pollution, and Waste through recycling, treatment, and efficient production. See Air Pollution and Water Pollution for details.
  • Ensure Services: Provide clean Water and diverse Food to boost health.
  • Monitor Exploration: Limit early exploration with The Ship to delay severe diseases until clinics are established.
  • Adjust Edicts: Use health-focused Edicts to offset penalties from pollution or diseases.