diff --git a/common/physics.weapon.aura.ts b/common/physics.weapon.aura.ts
index 7fcf84f..240ea58 100644
--- a/common/physics.weapon.aura.ts
+++ b/common/physics.weapon.aura.ts
@@ -31,7 +31,8 @@ export function handleAuraWeaponCollisions(
         type: "weaponCollision",
         damagedPlayerId: otherPlayer.id,
         playerId: player.id,
-        amount: otherPlayerWeaponDamage / elapsedTime,
+        amount:
+          (otherPlayerWeaponDamage * weapon.damageMultiplier) / elapsedTime,
       });
     }
 
diff --git a/common/types/weapon.ts b/common/types/weapon.ts
index 750bd5c..555f9bd 100644
--- a/common/types/weapon.ts
+++ b/common/types/weapon.ts
@@ -48,12 +48,17 @@ export type AuraWeapon = BaseWeapon & {
    * The radius the aura extends from the player.
    */
   radiusFromPlayer: number;
+  /**
+   * A multiplier on the damage dealt by the aura to other players.
+   */
+  damageMultiplier: number;
 };
 
 export function makeAuraWeapon(): AuraWeapon {
   return {
     type: "aura",
-    playerCollisionWeightMultiplier: 3,
+    playerCollisionWeightMultiplier: 2,
     radiusFromPlayer: 5,
+    damageMultiplier: 1.5,
   };
 }
diff --git a/server/logic/room-controller.base.ts b/server/logic/room-controller.base.ts
index 96ebc80..5b24176 100644
--- a/server/logic/room-controller.base.ts
+++ b/server/logic/room-controller.base.ts
@@ -113,6 +113,14 @@ export class BaseRoomController implements RoomController {
       const damagedPlayer = this.room.players[damage.damagedPlayerId];
       assert(damagedPlayer, "Damaged player not found");
 
+      if (
+        damage.type === "playerCollision" &&
+        damagedPlayer.weapon.type === "aura"
+      ) {
+        // Players with aura weapons are immune to player collisions
+        continue;
+      }
+
       // TODO: Ignore damage if damaged by same source in the last N milliseconds
 
       damagedPlayer.health -= damage.amount;