diff --git a/crates/game-service/src/battle_session.rs b/crates/game-service/src/battle_session.rs
index 6536c11..23426b9 100644
--- a/crates/game-service/src/battle_session.rs
+++ b/crates/game-service/src/battle_session.rs
@@ -24,10 +24,20 @@ pub struct BattleSession {
     next_snapshot: i32,
     next_bot_play: i32,
     pub pushed_snapshots: u32,
+    next_instance: i32,
     pending_bot_play: Option<(LogicDataRef, LogicVector2, i32)>,
 }
 impl BattleSession {
     pub fn new(mode: LogicGameMode, taunts: Vec<LogicDataRef>) -> Self {
+        let first_instance = mode
+            .battle
+            .objects
+            .objects
+            .iter()
+            .filter_map(|entry| entry.global_id.0.map(|id| id.instance_id))
+            .max()
+            .map(|last| last + 1)
+            .unwrap_or(0);
         let mut random = LogicRandom::new(mode.random_seed);
         let next_bot_emote = Self::roll_emote_tick(&mut random, 0);
         Self {
@@ -42,6 +52,7 @@ impl BattleSession {
             next_snapshot: SNAPSHOT_INTERVAL_TICKS,
             next_bot_play: crate::bot::BOT_OPENING_DELAY_SECONDS * BATTLE_TICKS_PER_SECOND,
             pushed_snapshots: 0,
+            next_instance: first_instance,
             pending_bot_play: None,
         }
     }
@@ -258,16 +269,10 @@ impl BattleSession {
             .position(|id| *id == account)
             .map(|index| index as i32)
     }
-    pub fn next_instance(&self) -> i32 {
-        self.mode
-            .battle
-            .objects
-            .objects
-            .iter()
-            .filter_map(|entry| entry.global_id.0.map(|id| id.instance_id))
-            .max()
-            .map(|last| last + 1)
-            .unwrap_or(0)
+    pub fn next_instance(&mut self) -> i32 {
+        let instance = self.next_instance;
+        self.next_instance += 1;
+        instance
     }
     pub fn deck_card(&self, owner: i32, slot: i32) -> Option<LogicDataRef> {
         let deck = self.mode.battle.decks.get(owner.max(0) as usize)?.as_ref()?;