- Add the ability to charge additional upkeep per outpost controlled

by a town.
    - Closes #7664.
  - New Config Option: economy.daily_taxes.per_outpost_cost
    - Default: 0.0
    - An optional price that a town must pay for each outpost they own.
This number is added to the town upkeep before any other upkeep
modifiers are applied to the Town's upkeep costs.

Towny/src/main/java/com/palmergames/bukkit/config/ConfigNodes.java

@@ -2851,6 +2851,12 @@ public enum ConfigNodes {
 			"",
 			"# Uses total number of plots that the town is overclaimed by, to determine the price_town_overclaimed_upkeep_penalty cost.",
 			"# If set to true the penalty is calculated (# of plots overclaimed X price_town_overclaimed_upkeep_penalty)."),
+	ECO_PRICE_TOWN_OUTPOST_UPKEEP_COST(
+			"economy.daily_taxes.per_outpost_cost",
+			"0.0",
+			"",
+			"# An optional price that a town must pay for each outpost they own. This number is added to the town upkeep",
+			"# before any other upkeep modifiers are applied to the Town's upkeep costs."),
 	ECO_TAXES_ALLOW_PLOT_PAYMENTS(
 			"economy.daily_taxes.use_plot_payments",
 			"false",

Towny/src/main/java/com/palmergames/bukkit/towny/TownySettings.java

@@ -2218,8 +2218,12 @@ private static double getTownUpkeepCostRaw(Town town) {
 
 		// There's the chance that even with per-plot-upkeep, the townLevel upkeep modifier is still used, or 1.0 if not. 
 		double townLevelPlotModifier = isUpkeepByPlot() && isTownLevelModifiersAffectingPlotBasedUpkeep() ? town.getTownLevel().upkeepModifier() : 1.0;
+
+		// outposts can have an added cost to the town's upkeep.
+		double outpostCost = getPerOutpostUpkeepCost() * town.getMaxOutpostSpawn();
+		double baseUpkeep = getTownUpkeep() + outpostCost;
 		// Amount is calculated using the above multipliers.
-		double amount = ((getTownUpkeep() * townMultiplier) * townLevelPlotModifier) * nationMultiplier;
+		double amount = ((baseUpkeep * townMultiplier) * townLevelPlotModifier) * nationMultiplier;
 
 		// When per-plot-upkeep is in use, there can be min/max amounts.
 		if (isUpkeepByPlot()) {
@@ -2306,6 +2310,10 @@ public static boolean isUpkeepPenaltyByPlot() {
     	return getBoolean(ConfigNodes.ECO_PRICE_TOWN_OVERCLAIMED_UPKEEP_PENALTY_PLOTBASED);
     }
 
+	public static double getPerOutpostUpkeepCost() {
+		return getDouble(ConfigNodes.ECO_PRICE_TOWN_OUTPOST_UPKEEP_COST);
+	}
+
 	public static double getNationUpkeep() {
 
 		return getDouble(ConfigNodes.ECO_PRICE_NATION_UPKEEP);

Towny/src/main/resources/ChangeLog.txt

@@ -10118,4 +10118,9 @@ v0.92.0.11:
   - Adapt to Attributes change.
   - Update bridger for java 21 support, courtesy of Warrior with PR #7658.
   - Add messages to residents when they pay town and plot taxes.
-    - Closes #7657.
+    - Closes #7657.
+  - Add the ability to charge additional upkeep per outpost controlled by a town.
+    - Closes #7664.
+  - New Config Option: economy.daily_taxes.per_outpost_cost
+    - Default: 0.0
+    - An optional price that a town must pay for each outpost they own. This number is added to the town upkeep before any other upkeep modifiers are applied to the Town's upkeep costs.