diff --git a/gameserver/src/main/java/brainwine/gameserver/achievements/Achievement.java b/gameserver/src/main/java/brainwine/gameserver/achievements/Achievement.java
index 3713ee5..c74fb03 100644
--- a/gameserver/src/main/java/brainwine/gameserver/achievements/Achievement.java
+++ b/gameserver/src/main/java/brainwine/gameserver/achievements/Achievement.java
@@ -27,6 +27,7 @@ import brainwine.gameserver.util.MathUtils;
     @Type(name = "SidekickAchievement", value = SidekickAchievement.class),
     @Type(name = "ScavengingAchievement", value = ScavengingAchievement.class),
     @Type(name = "DiscoveryAchievement", value = DiscoveryAchievement.class),
+    @Type(name = "SpawnerStoppageAchievement", value = SpawnerStoppageAchievement.class),
     @Type(name = "Journeyman", value = JourneymanAchievement.class)
 })
 @JsonSerialize(using = AchievementSerializer.class)
diff --git a/gameserver/src/main/java/brainwine/gameserver/achievements/SpawnerStoppageAchievement.java b/gameserver/src/main/java/brainwine/gameserver/achievements/SpawnerStoppageAchievement.java
new file mode 100644
index 0000000..ac3b3b0
--- /dev/null
+++ b/gameserver/src/main/java/brainwine/gameserver/achievements/SpawnerStoppageAchievement.java
@@ -0,0 +1,19 @@
+package brainwine.gameserver.achievements;
+
+import com.fasterxml.jackson.annotation.JacksonInject;
+import com.fasterxml.jackson.annotation.JsonCreator;
+
+import brainwine.gameserver.entity.player.Player;
+
+public class SpawnerStoppageAchievement extends Achievement {
+    
+    @JsonCreator
+    public SpawnerStoppageAchievement(@JacksonInject("title") String title) {
+        super(title);
+    }
+    
+    @Override
+    public int getProgress(Player player) {
+        return player.getStatistics().getMawsPlugged();
+    }
+}
diff --git a/gameserver/src/main/java/brainwine/gameserver/entity/player/PlayerStatistics.java b/gameserver/src/main/java/brainwine/gameserver/entity/player/PlayerStatistics.java
index 65746dd..f028ad8 100644
--- a/gameserver/src/main/java/brainwine/gameserver/entity/player/PlayerStatistics.java
+++ b/gameserver/src/main/java/brainwine/gameserver/entity/player/PlayerStatistics.java
@@ -20,6 +20,7 @@ import brainwine.gameserver.achievements.MiningAchievement;
 import brainwine.gameserver.achievements.RaiderAchievement;
 import brainwine.gameserver.achievements.ScavengingAchievement;
 import brainwine.gameserver.achievements.SidekickAchievement;
+import brainwine.gameserver.achievements.SpawnerStoppageAchievement;
 import brainwine.gameserver.entity.EntityConfig;
 import brainwine.gameserver.item.Item;
 
@@ -37,6 +38,7 @@ public class PlayerStatistics {
     private int areasExplored;
     private int containersLooted;
     private int dungeonsRaided;
+    private int mawsPlugged;
     private int deaths;
     
     @JsonIgnore
@@ -293,6 +295,20 @@ public class PlayerStatistics {
         return dungeonsRaided;
     }
     
+    public void trackMawPlugged() {
+        mawsPlugged++;
+        player.addExperience(5);
+        player.updateAchievementProgress(SpawnerStoppageAchievement.class);
+    }
+    
+    public void setMawsPlugged(int mawsPlugged) {
+        this.mawsPlugged = mawsPlugged;
+    }
+    
+    public int getMawsPlugged() {
+        return mawsPlugged;
+    }
+    
     public void trackDeath() {
         deaths++;
     }
diff --git a/gameserver/src/main/java/brainwine/gameserver/item/Item.java b/gameserver/src/main/java/brainwine/gameserver/item/Item.java
index 7b10527..d19d3ae 100644
--- a/gameserver/src/main/java/brainwine/gameserver/item/Item.java
+++ b/gameserver/src/main/java/brainwine/gameserver/item/Item.java
@@ -87,6 +87,9 @@ public class Item {
     @JsonProperty("placeover")
     private boolean placeover;
     
+    @JsonProperty("custom_place")
+    private boolean customPlace;
+    
     @JsonProperty("base")
     private boolean base;
     
@@ -311,6 +314,10 @@ public class Item {
         return placeover;
     }
     
+    public boolean hasCustomPlace() {
+        return customPlace;
+    }
+    
     public boolean isWhole() {
         return whole;
     }
diff --git a/gameserver/src/main/java/brainwine/gameserver/server/requests/BlockPlaceRequest.java b/gameserver/src/main/java/brainwine/gameserver/server/requests/BlockPlaceRequest.java
index c823791..98500ac 100644
--- a/gameserver/src/main/java/brainwine/gameserver/server/requests/BlockPlaceRequest.java
+++ b/gameserver/src/main/java/brainwine/gameserver/server/requests/BlockPlaceRequest.java
@@ -87,6 +87,33 @@ public class BlockPlaceRequest extends PlayerRequest {
         player.getInventory().removeItem(item);
         player.getStatistics().trackItemPlaced();
         player.trackPlacement(x, y, item);
+        
+        // Process custom place if applicable
+        if(item.hasCustomPlace()) {
+            processCustomPlace(player);
+        }
+    }
+    
+    private void processCustomPlace(Player player) {
+        Zone zone = player.getZone();
+        
+        switch(item.getId()) {
+            // See if we can plug a maw or pipe
+            case "building/plug":
+                Item baseItem = zone.getBlock(x, y).getBaseItem();
+                String plugged = baseItem.hasId("base/maw") ? "base/maw-plugged"
+                        : baseItem.hasId("base/pipe") ? "base/pipe-plugged" : null;
+                
+                if(plugged != null) {
+                    zone.updateBlock(x, y, Layer.FRONT, 0); // Remove the plug front block
+                    zone.updateBlock(x, y, Layer.BASE, plugged);
+                    player.getStatistics().trackMawPlugged();
+                }
+                
+                break;
+            // No valid item; do nothing
+            default: break;
+        }
     }
     
     private void fail(Player player, String reason) {