diff --git a/biomes/util/ruined_portals.json b/biomes/util/ruined_portals.json
index f39c69ee..077de54f 100644
--- a/biomes/util/ruined_portals.json
+++ b/biomes/util/ruined_portals.json
@@ -10,26 +10,17 @@
     }],
     "objects": [
         {
-            "name": "standard-surface",
             "chance": 0.2,
             "place": [
-                "clutter/swordnp2",
-                "clutter/swordnp1",
-                "clutter/swordnp2",
-                "clutter/swordnp1",
+                "structures/swordnp2",
+                "structures/swordnp1",
+                "structures/swordnpstr2",
+                "structures/swordnpstr1",
                 "structures/giantportal1",
                 "structures/giantportal2",
                 "structures/giantportal3",
-                "structures/portal1",
-                "structures/portal2",
-                "structures/portal3",
-                "structures/portal4",
-                "structures/portal5",
-                "structures/portal6",
-                "structures/portal7",
-                "structures/portal8",
-                "structures/portal9",
-                "structures/portal10"
+                "structures/megaportal1",
+                "structures/megaportal2"
             ],
             "edit": [
                 {
@@ -57,25 +48,18 @@
             "carvingSupport": "CARVING_ONLY"
         },
         {
-            "name": "standard-underground",
             "chance": 0.2,
             "mode": "FAST_MIN_HEIGHT",
             "place": [
-                "clutter/swordnp2",
-                "clutter/swordnp1",
+                "structures/swordnp2",
+                "structures/swordnp1",
+                "structures/swordnpstr2",
+                "structures/swordnpstr1",
                 "structures/giantportal1",
                 "structures/giantportal2",
                 "structures/giantportal3",
-                "structures/portal1",
-                "structures/portal2",
-                "structures/portal3",
-                "structures/portal4",
-                "structures/portal5",
-                "structures/portal6",
-                "structures/portal7",
-                "structures/portal8",
-                "structures/portal9",
-                "structures/portal10"
+                "structures/megaportal1",
+                "structures/megaportal2"
             ],
             "edit": [
                 {
diff --git a/dimensions/overworld.json b/dimensions/overworld.json
index 2160da1c..070eff26 100644
--- a/dimensions/overworld.json
+++ b/dimensions/overworld.json
@@ -4,10 +4,10 @@
     "environment": "NORMAL",
     "fluidHeight": 100,
     "continentZoom": 1,
-    "logicalHeight": 512,
+    "logicalHeight": 384,
     "dimensionHeight": {
-        "max": 512,
-        "min": -64
+        "max": 384,
+        "min": 0
     },
     "continentalStyle": {
         "style": "NOWHERE_CELLULAR",
diff --git a/objects/structures/megaportal1.iob b/objects/structures/megaportal1.iob
new file mode 100644
index 00000000..2eedca29
Binary files /dev/null and b/objects/structures/megaportal1.iob differ
diff --git a/objects/structures/megaportal2.iob b/objects/structures/megaportal2.iob
new file mode 100644
index 00000000..35574ecc
Binary files /dev/null and b/objects/structures/megaportal2.iob differ
diff --git a/objects/clutter/swordnp1.iob b/objects/structures/swordnp1.iob
similarity index 100%
rename from objects/clutter/swordnp1.iob
rename to objects/structures/swordnp1.iob
diff --git a/objects/clutter/swordnp2.iob b/objects/structures/swordnp2.iob
similarity index 100%
rename from objects/clutter/swordnp2.iob
rename to objects/structures/swordnp2.iob
diff --git a/objects/clutter/swordnpstr1.iob b/objects/structures/swordnpstr1.iob
similarity index 100%
rename from objects/clutter/swordnpstr1.iob
rename to objects/structures/swordnpstr1.iob
diff --git a/objects/clutter/swordnpstr2.iob b/objects/structures/swordnpstr2.iob
similarity index 100%
rename from objects/clutter/swordnpstr2.iob
rename to objects/structures/swordnpstr2.iob