diff --git a/src/main/java/com/volmit/iris/engine/modifier/IrisCaveModifier.java b/src/main/java/com/volmit/iris/engine/modifier/IrisCaveModifier.java
index 20fc34ad6..29a3d2769 100644
--- a/src/main/java/com/volmit/iris/engine/modifier/IrisCaveModifier.java
+++ b/src/main/java/com/volmit/iris/engine/modifier/IrisCaveModifier.java
@@ -49,53 +49,67 @@ public class IrisCaveModifier extends EngineAssignedModifier<BlockData> {
     }
 
     @Override
-    public void onModify(int x, int z, Hunk<BlockData> a) {
+    public void onModify(int x, int z, Hunk<BlockData> a, boolean multicore) {
         if (!getDimension().isCaves()) {
             return;
         }
 
         PrecisionStopwatch p = PrecisionStopwatch.start();
-        BurstExecutor e = getEngine().burst().burst(a.getWidth());
-        for (int i = 0; i < a.getWidth(); i++) {
-            int finalI = i;
-            e.queue(() -> {
-                for (int j = 0; j < a.getDepth(); j++) {
-                    KList<CaveResult> caves = genCaves(x + finalI, z + j, finalI, j, a);
-                    int he = (int) Math.round(getComplex().getHeightStream().get(x + finalI, z + j));
-                    if (caves != null && caves.isNotEmpty()) {
-                        IrisBiome cave = getComplex().getCaveBiomeStream().get(x + finalI, z + j);
+        if(multicore)
+        {
+            BurstExecutor e = getEngine().burst().burst(a.getWidth());
+            for (int i = 0; i < a.getWidth(); i++) {
+                int finalI = i;
+                e.queue(() -> modifySliver(x, z, finalI, a));
+            }
 
-                        if (cave == null) {
-                            continue;
-                        }
-
-                        for (CaveResult cl : caves) {
-                            if (cl.getFloor() < 0 || cl.getFloor() > getEngine().getHeight() || cl.getCeiling() > getEngine().getHeight() || cl.getCeiling() < 0) {
-                                continue;
-                            }
-
-                            KList<BlockData> floor = cave.generateLayers(x + finalI, z + j, rng, cl.getFloor(), cl.getFloor(), getData(), getComplex());
-                            KList<BlockData> ceiling = cave.generateLayers(x + finalI + 656, z + j - 656, rng,
-                                    he - cl.getCeiling(),
-                                    he - cl.getCeiling(), getData(), getComplex());
-
-                            for (int g = 0; g < floor.size(); g++) {
-                                a.set(finalI, cl.getFloor() - g, j, floor.get(g));
-                            }
-
-                            for (int g = ceiling.size() - 1; g > 0; g--) {
-                                a.set(finalI, cl.getCeiling() + g, j, ceiling.get(g));
-                            }
-                        }
-                    }
-                }
-            });
+            e.complete();
+        }
+
+        else
+        {
+            for (int i = 0; i < a.getWidth(); i++) {
+                modifySliver(x, z, i, a);
+            }
         }
 
-        e.complete();
         getEngine().getMetrics().getCave().put(p.getMilliseconds());
     }
 
+    public void modifySliver(int x, int z, int finalI, Hunk<BlockData> a)
+    {
+        for (int j = 0; j < a.getDepth(); j++) {
+            KList<CaveResult> caves = genCaves(x + finalI, z + j, finalI, j, a);
+            int he = (int) Math.round(getComplex().getHeightStream().get(x + finalI, z + j));
+            if (caves != null && caves.isNotEmpty()) {
+                IrisBiome cave = getComplex().getCaveBiomeStream().get(x + finalI, z + j);
+
+                if (cave == null) {
+                    continue;
+                }
+
+                for (CaveResult cl : caves) {
+                    if (cl.getFloor() < 0 || cl.getFloor() > getEngine().getHeight() || cl.getCeiling() > getEngine().getHeight() || cl.getCeiling() < 0) {
+                        continue;
+                    }
+
+                    KList<BlockData> floor = cave.generateLayers(x + finalI, z + j, rng, cl.getFloor(), cl.getFloor(), getData(), getComplex());
+                    KList<BlockData> ceiling = cave.generateLayers(x + finalI + 656, z + j - 656, rng,
+                            he - cl.getCeiling(),
+                            he - cl.getCeiling(), getData(), getComplex());
+
+                    for (int g = 0; g < floor.size(); g++) {
+                        a.set(finalI, cl.getFloor() - g, j, floor.get(g));
+                    }
+
+                    for (int g = ceiling.size() - 1; g > 0; g--) {
+                        a.set(finalI, cl.getCeiling() + g, j, ceiling.get(g));
+                    }
+                }
+            }
+        }
+    }
+
     public KList<CaveResult> genCaves(double wxx, double wzz, int x, int z, Hunk<BlockData> data) {
         if (!getDimension().isCaves()) {
             return EMPTY;
diff --git a/src/main/java/com/volmit/iris/engine/modifier/IrisDepositModifier.java b/src/main/java/com/volmit/iris/engine/modifier/IrisDepositModifier.java
index 035e95383..3c549ecb4 100644
--- a/src/main/java/com/volmit/iris/engine/modifier/IrisDepositModifier.java
+++ b/src/main/java/com/volmit/iris/engine/modifier/IrisDepositModifier.java
@@ -40,7 +40,7 @@ public class IrisDepositModifier extends EngineAssignedModifier<BlockData> {
     }
 
     @Override
-    public void onModify(int x, int z, Hunk<BlockData> output) {
+    public void onModify(int x, int z, Hunk<BlockData> output, boolean multicore) {
         PrecisionStopwatch p = PrecisionStopwatch.start();
         generateDeposits(rng, output, Math.floorDiv(x, 16), Math.floorDiv(z, 16));
         getEngine().getMetrics().getDeposit().put(p.getMilliseconds());
diff --git a/src/main/java/com/volmit/iris/engine/modifier/IrisPostModifier.java b/src/main/java/com/volmit/iris/engine/modifier/IrisPostModifier.java
index 94da5c0f9..d04c00f2b 100644
--- a/src/main/java/com/volmit/iris/engine/modifier/IrisPostModifier.java
+++ b/src/main/java/com/volmit/iris/engine/modifier/IrisPostModifier.java
@@ -47,20 +47,33 @@ public class IrisPostModifier extends EngineAssignedModifier<BlockData> {
     }
 
     @Override
-    public void onModify(int x, int z, Hunk<BlockData> output) {
+    public void onModify(int x, int z, Hunk<BlockData> output, boolean multicore) {
         PrecisionStopwatch p = PrecisionStopwatch.start();
-        BurstExecutor e = getEngine().burst().burst(output.getWidth());
         int i;
         AtomicInteger j = new AtomicInteger();
-        for (i = 0; i < output.getWidth(); i++) {
-            int finalI = i;
-            e.queue(() -> {
-                for (j.set(0); j.get() < output.getDepth(); j.getAndIncrement()) {
-                    post(finalI, j.get(), output, finalI + x, j.get() + z);
-                }
-            });
+        if(multicore)
+        {
+            BurstExecutor e = getEngine().burst().burst(output.getWidth());
+            for (i = 0; i < output.getWidth(); i++) {
+                int finalI = i;
+                e.queue(() -> {
+                    for (j.set(0); j.get() < output.getDepth(); j.getAndIncrement()) {
+                        post(finalI, j.get(), output, finalI + x, j.get() + z);
+                    }
+                });
+            }
+            e.complete();
         }
-        e.complete();
+
+        else
+        {
+            for (i = 0; i < output.getWidth(); i++) {
+                for (j.set(0); j.get() < output.getDepth(); j.getAndIncrement()) {
+                    post(i, j.get(), output, i + x, j.get() + z);
+                }
+            }
+        }
+
         getEngine().getMetrics().getPost().put(p.getMilliseconds());
     }
 
diff --git a/src/main/java/com/volmit/iris/engine/modifier/IrisRavineModifier.java b/src/main/java/com/volmit/iris/engine/modifier/IrisRavineModifier.java
index 70f64ae8e..e4a2ae5a7 100644
--- a/src/main/java/com/volmit/iris/engine/modifier/IrisRavineModifier.java
+++ b/src/main/java/com/volmit/iris/engine/modifier/IrisRavineModifier.java
@@ -46,7 +46,7 @@ public class IrisRavineModifier extends EngineAssignedModifier<BlockData> {
     }
 
     @Override
-    public void onModify(int x, int z, Hunk<BlockData> output) {
+    public void onModify(int x, int z, Hunk<BlockData> output, boolean multicore) {
         if (!getDimension().isRavines()) {
             return;
         }