diff --git a/Games/ZombieSurvival/ZombieGame.Core.cs b/Games/ZombieSurvival/ZombieGame.Core.cs
index 655472b0d..66531e943 100644
--- a/Games/ZombieSurvival/ZombieGame.Core.cs
+++ b/Games/ZombieSurvival/ZombieGame.Core.cs
@@ -83,6 +83,7 @@ namespace MCGalaxy.Games {
 
             Player[] online = PlayerInfo.Online.Items;
             foreach (Player p in online) {
+                if (p.level == null || p.level != CurLevel) continue;
                 if (p != first) Alive.Add(p);
             }
 
diff --git a/Games/ZombieSurvival/ZombieGame.Game.cs b/Games/ZombieSurvival/ZombieGame.Game.cs
index 63457d146..663a9aa1b 100644
--- a/Games/ZombieSurvival/ZombieGame.Game.cs
+++ b/Games/ZombieSurvival/ZombieGame.Game.cs
@@ -162,7 +162,14 @@ namespace MCGalaxy.Games {
         }
 		
         public override bool PlayerCanJoinLevel(Player p, Level lvl, Level oldLvl) {
-             return base.PlayerCanJoinLevel(p, lvl, oldLvl);
+			if (!oldLvl.name.CaselessEq(CurLevelName)) return true;
+			if (lvl.name.CaselessEq(CurLevelName)) return true;
+			
+			if (RoundInProgress && !p.referee) {
+				p.SendMessage("Sorry, you cannot leave a zombie survival map until the current round has ended.");
+				return false;
+			}
+			return true;
         }
         
         public override void PlayerMoneyChanged(Player p) {