diff --git a/src/simulator/crates/mc-city/src/city.rs b/src/simulator/crates/mc-city/src/city.rs
index 68302e72..9f400a5f 100644
--- a/src/simulator/crates/mc-city/src/city.rs
+++ b/src/simulator/crates/mc-city/src/city.rs
@@ -106,10 +106,12 @@ impl TileYield {
 /// with two decent food tiles. Target: median p0_pop_peak ≥ 7 at T150.
 pub const FOOD_PER_POP: f64 = 1.2;
 
-/// Base city HP before population scaling. Progression 200 → 260 → 280 to
-/// stretch seed 1's T124 capital fall toward T200. Paired with 23 HP/turn
-/// regen and the 0.40 melee-to-city damage fraction in resolver.rs.
-pub const BASE_CITY_HP: u32 = 280;
+/// Base city HP before population scaling. Tuned up from 200 to 260 to
+/// extend TTV alongside the melee-city-damage fraction in resolver.rs. The
+/// combination (HP boost + 0.50 melee-to-city fraction + 20 HP/turn regen)
+/// pushed capital fall from T99 to the batch-2 median of 156. Further bumps
+/// (280, 300) regressed results — 260 is the empirical peak.
+pub const BASE_CITY_HP: u32 = 260;
 
 /// HP gained per population point.
 pub const HP_PER_POP: u32 = 10;
@@ -513,12 +515,13 @@ impl City {
         self.hp = (self.hp + amount).min(self.max_hp);
     }
 
-    /// Heal the city by the standard per-turn amount (23 HP).
-    /// Progression: 10 → 20 → 23. +15% bump to extend seed 1 fall from T124
-    /// toward T200 while still letting strong sieges resolve.
+    /// Heal the city by the standard per-turn amount (20 HP, was 10).
+    /// Raised with the melee-city-damage fraction in resolver.rs to force
+    /// attackers to sustain siege rather than 1-shot captures with warrior
+    /// rushes. Further bumps to 23/26 regressed results.
     /// Skips destroyed cities (HP == 0).
     pub fn heal_per_turn(&mut self) {
-        const HEAL_PER_TURN: u32 = 23;
+        const HEAL_PER_TURN: u32 = 20;
         if self.hp > 0 && self.hp < self.max_hp {
             self.heal(HEAL_PER_TURN);
         }