diff --git a/src/engine/ZergMehcanics/MineAntiZerg.java b/src/engine/ZergMehcanics/MineAntiZerg.java
new file mode 100644
index 00000000..95a378d7
--- /dev/null
+++ b/src/engine/ZergMehcanics/MineAntiZerg.java
@@ -0,0 +1,116 @@
+package engine.ZergMehcanics;
+
+import engine.InterestManagement.WorldGrid;
+import engine.gameManager.BuildingManager;
+import engine.gameManager.ZergManager;
+import engine.objects.*;
+import engine.server.MBServerStatics;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+
+public class MineAntiZerg {
+
+    public static HashMap<Mine,HashMap<PlayerCharacter,Long>> leaveTimers = new HashMap<>();
+    public static HashMap<Mine,ArrayList<PlayerCharacter>> currentPlayers = new HashMap<>();
+
+    public static void runMines(){
+        for(Mine mine : Mine.getMines()){
+
+            Building tower = BuildingManager.getBuildingFromCache(mine.getBuildingID());
+
+            if(tower == null)
+                continue;
+
+            if(!mine.isActive)
+                continue;
+
+            logPlayersPresent(tower,mine);
+
+            auditPlayersPresent(tower,mine);
+
+            auditPlayers(mine);
+        }
+    }
+
+    public static void logPlayersPresent(Building tower, Mine mine){
+        HashSet<AbstractWorldObject> loadedPlayers = WorldGrid.getObjectsInRangePartial(tower.loc, MBServerStatics.CHARACTER_LOAD_RANGE * 3,MBServerStatics.MASK_PLAYER);
+
+        ArrayList<PlayerCharacter> playersPresent = new ArrayList<>();
+        for(AbstractWorldObject player : loadedPlayers){
+            playersPresent.add((PlayerCharacter)player);
+        }
+
+        currentPlayers.put(mine,playersPresent);
+    }
+
+    public static void auditPlayersPresent(Building tower, Mine mine){
+        HashSet<AbstractWorldObject> loadedPlayers = WorldGrid.getObjectsInRangePartial(tower.loc, MBServerStatics.CHARACTER_LOAD_RANGE * 3,MBServerStatics.MASK_PLAYER);
+
+        ArrayList<PlayerCharacter> toRemove = new ArrayList<>();
+
+        for(PlayerCharacter player : currentPlayers.get(mine)){
+            if(!loadedPlayers.contains(player)){
+                toRemove.add(player);
+            }
+        }
+
+        currentPlayers.get(mine).removeAll(toRemove);
+
+        for(PlayerCharacter player : toRemove){
+            if(leaveTimers.containsKey(mine)){
+                leaveTimers.get(mine).put(player,System.currentTimeMillis());
+            }else{
+                HashMap<PlayerCharacter,Long> leaveTime = new HashMap<>();
+                leaveTime.put(player,System.currentTimeMillis());
+                leaveTimers.put(mine,leaveTime);
+            }
+        }
+
+        toRemove.clear();
+
+        for(PlayerCharacter player : leaveTimers.get(mine).keySet()){
+            long timeGone = System.currentTimeMillis() - leaveTimers.get(mine).get(player);
+            if(timeGone > 180000L) {//3 minutes
+                toRemove.add(player);
+                player.ZergMultiplier = 1.0f;
+            }
+        }
+
+        for(PlayerCharacter player : toRemove) {
+            leaveTimers.get(mine).remove(player);
+        }
+    }
+
+    public static void auditPlayers(Mine mine){
+
+        HashMap<Guild,ArrayList<PlayerCharacter>> playersByNation = new HashMap<>();
+
+        for(PlayerCharacter player : currentPlayers.get(mine)){
+            if(playersByNation.containsKey(player.guild.getNation())){
+                playersByNation.get(player.guild.getNation()).add(player);
+            }else{
+                ArrayList<PlayerCharacter> players = new ArrayList<>();
+                players.add(player);
+                playersByNation.put(player.guild.getNation(),players);
+            }
+        }
+
+        for(PlayerCharacter player : leaveTimers.get(mine).keySet()){
+            if(playersByNation.containsKey(player.guild.getNation())){
+                playersByNation.get(player.guild.getNation()).add(player);
+            }else{
+                ArrayList<PlayerCharacter> players = new ArrayList<>();
+                players.add(player);
+                playersByNation.put(player.guild.getNation(),players);
+            }
+        }
+
+        for(Guild nation : playersByNation.keySet()){
+            for(PlayerCharacter player : playersByNation.get(nation)){
+                player.ZergMultiplier = ZergManager.getCurrentMultiplier(playersByNation.get(nation).size(), mine.capSize);
+            }
+        }
+    }
+}