diff --git a/src/core/game/Game.ts b/src/core/game/Game.ts
index 4b05feedd..737810795 100644
--- a/src/core/game/Game.ts
+++ b/src/core/game/Game.ts
@@ -479,6 +479,8 @@ export interface Unit {
   transportShipState(): TransportShipState;
   updateTransportShipState(update: Partial<TransportShipState>): void;
   health(): number;
+  /** Max health from unit info (1 for units without health). */
+  maxHealth(): number;
   modifyHealth(delta: number, attacker?: Player): void;
 
   // Troops
diff --git a/src/core/game/UnitImpl.ts b/src/core/game/UnitImpl.ts
index 5071d51f0..26841520c 100644
--- a/src/core/game/UnitImpl.ts
+++ b/src/core/game/UnitImpl.ts
@@ -185,6 +185,9 @@ export class UnitImpl implements Unit {
   health(): number {
     return Number(this._health);
   }
+  maxHealth(): number {
+    return this.info().maxHealth ?? 1;
+  }
   hasHealth(): boolean {
     return this.info().maxHealth !== undefined;
   }