Terrain Tiles are the hexagonal shaped tiles that portray landmasses that appear on the world map. Each Terrain Tile has specific properties, such as Green Level, assigned to it. The Green Level of the tile is used in conjunction with the Green Level System, which is used to determine how the Terrain Tiles’ states will change with each turn. Some Terrain Tiles will behave differently using this value compared to other tiles. Terrain Tiles can be affected and changed through use of Ability Cards, Natural Disasters, and Village Abilities.

*Natural Disaster Spawning Percentages and Terrain Tile Green Level tuning can be found in the Terrain Tile Tuning spreadsheet.

Green Level Average Rules

• Each turn, Terrain Tiles in the world will calculate their Green Level Average
• Based on their Green Level Average, a Terrain Tile will determine if it will remain the same or transitions towards a different target Tile type
• If the Basic Terrain Tile is eligible to change its type:
  • The Tile changes into the Basic Terrain Tile that is either one Green Level above or below the current Green Level of the changing tile
    • The change occurs once per turn until it the Changing Terrain Tile has changed into its target Terrain Tile
    • The order in which a changing Terrain Tile progresses through sequence of Basic Terrain Tiles towards its target Terrain Tile type is determined by the Green Levels of the Basic Terrain Tiles
    • The target Terrain Tile type may change before the changing Terrain Tile has reached its target Terrain Tile
  • Terrain Tiles cannot change into Special Terrain Tile types through the Green Level Average Calculation System
• There are specific ranges of Green Level Average values that determine whether the Green Level Average of a Basic Terrain Tile allows it to change states or not
  • If a Basic Terrain Tile’s Green Level Average is within a range for a Basic Terrain Tile Type that is different from its current Terrain Tile type, the Tile will change towards the target Terrain Tile type (Ranges should be tunable)
    • If Green Level > 1.5, transition towards Swamp Tile next turn
    • If Green Level <= 1.5, transition towards Forest Tile next turn
    • If Green Level <= 0.5, transition towards Grassland Tile next turn
    • If Green Level <= -0.5, transition towards Steppe Tile next turn
    • If Green Level <= -1.5, transition towards Desert Tile next turn
  • If a Basic Terrain Tile’s Green Level Average is within a range for a Basic Terrain Tile type that is the same as its current Terrain Tile type, the Tile will NOT change

Basic Terrain Tile Types

• Swamp Tile
  • Terrain Tile Green Level Calculation Rules
    • Can change into other Terrain Tile types based on its Green Level Average Calculation
  • Terrain Tile and Village Interaction Rules
    • Villages cannot spawn on this Terrain Tile type
    • A Village will lose X Houses each turn while that Village occupies this Terrain Tile type
      • X is tunable (initial tuning: 3 houses)
    • A Village that occupies this Terrain Tile type cannot spawn Villages on other Terrain Tiles
• Forest Tile
  • Terrain Tile Green Level Calculation Rules
    • Can change into other Terrain Tile types based on its Average Green Level Calculation
  • Terrain Tile and Village Interaction Rules
    • Villages can spawn on this Terrain Tile type
    • A Village will gain X Houses each turn while that Village occupies this Terrain Tile type
      • X is tunable (initial tuning: 2 houses)
    • A Village that occupies this type of Terrain Tile can spawn Villages on other Terrain Tiles that Villages can exist on
• Grassland Tile
  • Terrain Tile Green Level Calculation Rules
    • Can change into other Terrain Tile types based on its Green Level Average Calculation
  • Terrain Tile and Village Interaction Rules
    • Villages can spawn on this Terrain Tile type
    • A Village will gain X Houses each turn while that Village occupies this Terrain Tile type
      • X is tunable (initial tuning: 1 houses)
    • A Village that occupies this type of Terrain Tile can spawn Villages on other Terrain Tiles that Villages can exist on
• Steppe Tile
  • Terrain Tile Green Level Calculation Rules
    • Can change into other Terrain Tile types based on its Green Level Average Calculation
  • Terrain Tile and Village Interaction Rules
    • Villages cannot spawn on this Terrain Tile type
    • A Village will gain X Houses each turn while that Village occupies this Terrain Tile type
      • X is tunable (initial tuning: 0 houses)
    • A Village that occupies this type of Terrain Tile can spawn Villages on other Terrain Tiles that Villages can exist on
• Desert Tile
  • Terrain Tile Green Level Calculation Rules
    • Can change into other Terrain Tile types based on its Green Level Average Calculation
  • Terrain Tile and Village Interaction Rules
    • Villages cannot spawn on this Terrain Tile type
    • A Village will lose X Houses each turn while that Village occupies this Terrain Tile type
      • X is tunable (initial tuning: 3 houses)
    • A Village that occupies this Terrain Tile type cannot spawn Villages on other Terrain Tiles

Special Terrain Tiles

Special Terrain Tiles are Tiles that do not adhere strictly to changing their states based on the calculation of their Green Level Averages. These Tiles tend to have special attributes and rules associated with them that dictate if and how they change as well as how they affect other Terrain Tiles around them.

• Water Tile
  • Terrain Tile Green Level Calculation Rules
    • A Water tile uses the Green Level Average Calculation System for determining the change in its Water Level
      • Does not use it to change into other Terrain Tile types
    • Other Terrain Tiles cannot change to a Water Tile through the Green Level Average Calculation System
  • Terrain Tile and Village Interaction Rules
    • Villages cannot spawn on this Terrain Tile type
    • If a Terrain Tile that a Village is occupying is changed to a Water Tile, the Village is destroyed and all Houses of the Village are removed
  • Special Terrain Tile Attributes and Rules
    • Water Level Attribute
      • Water Level is the amount of water that the Water Tile currently contains which can be increased or decreased
      • The Water Level can decrease or remain the same each turn based on the Water Tile’s Green Level Average Calculation
        • There are specific ranges of Green Level Average values that determine whether the Green Level Average of a Water Tile allows it to change its Water Level or not
        • If the Water Tile’s Green Level Average falls within a specified range, its Water Level changes based on the rule associated with that Green Level range
        • (Water Level reduction amounts should be tunable)
        • (Green Level Average ranges should be tunable)
          • If Green Level > 2.5, Water Level reduced by 0
          • If Green Level <= 2.5, Water Level reduced by 1
          • If Green Level <= 1.5, Water Level reduced by 2
          • If Green Level <= 0.5, Water Level reduced by 3
          • If Green Level <= -0.5, Water Level reduced by 4
          • If Green Level <= -1.5, Water Level reduced by 5
          • If Green Level <= -2.5, Water Level reduced by 6
      • The Water Level can be increased by using certain Ability Cards, Village Abilities, or side effects from certain Disasters
      • Water Tiles have a Minimum Water Level Capacity of zero
        • When a Water Tile’s Water Level becomes less than or equal to its Minimum Water Level Capacity, the Water Tile changes to a Playa Tile
      • Water Tiles have a Maximum Water Level Capacity of X
        • X is tunable (initial tuning: 12 Max Water Level Capacity)
          • The Water Level can be increased beyond the Maximum Water Level Capacity of the Water Tile
            • If a Water Tiles Water Level goes beyond its Maximum Water Level Capacity, the Flood Disaster spawns on the Water Tile
          • As long as the Water Level of the Water Tile is greater than the Tile’s Maximum Water Level Capacity, the Water Tile will continue to spawn the Flood Disaster

• Mountain Tile
  • Terrain Tile Green Level Calculation Rules
    • Does not perform the Green Level Average Calculation for itself
    • Cannot change into other Terrain Tile types through the Green Level Average Calculation System
    • Other Terrain Tiles cannot change to a Mountain Tile through the Green Level Average Calculation System
  • Terrain Tile and Village Interaction Rules
    • Villages cannot spawn on this Terrain Tile type
    • A Village will lose X Houses each turn while that Village occupies this Terrain Tile type
      • X is tunable (initial tuning: 2 houses)
    • A Village that occupies this Terrain Tile type cannot spawn Villages on other Terrain Tiles
• Playa Tile
  • Terrain Tile Green Level Calculation Rules
    • Does not perform the Green Level Average Calculation for itself
    • Cannot change into other Terrain Tile types through the Green Level Calculation System
    • Other Terrain Tiles cannot change to a Playa Tile through the Green Level Calculation System
  • Terrain Tile and Village Interaction Rules
    • Villages cannot spawn on this Terrain Tile type
    • If a Terrain Tile that a Village is occupying is changed to a Playa Tile, the Village is destroyed and all Houses of the Village are removed
  • Special Terrain Tile Attributes and Rules
    • Playa Tile can change to a Water Tile through use of Ability Cards, Village Abilities, or side effects of Disasters