diff --git a/core/src/mindustry/content/Planets.java b/core/src/mindustry/content/Planets.java
index ea3680534b..5cc164ca77 100644
--- a/core/src/mindustry/content/Planets.java
+++ b/core/src/mindustry/content/Planets.java
@@ -102,6 +102,7 @@ public class Planets{
         tantros = new Planet("tantros", sun, 1f, 2){{
             generator = new TantrosPlanetGenerator();
             meshLoader = () -> new HexMesh(this, 4);
+            accessible = false;
             atmosphereColor = Color.valueOf("3db899");
             startSector = 10;
             atmosphereRadIn = -0.01f;
@@ -164,6 +165,7 @@ public class Planets{
             camRadius = 0.68f * scale;
             minZoom = 0.6f;
             drawOrbit = false;
+            accessible = false;
             clipRadius = 2f;
             defaultEnv = Env.space;
 
diff --git a/core/src/mindustry/editor/SectorGenerateDialog.java b/core/src/mindustry/editor/SectorGenerateDialog.java
index 3d09823ff6..4a56276644 100644
--- a/core/src/mindustry/editor/SectorGenerateDialog.java
+++ b/core/src/mindustry/editor/SectorGenerateDialog.java
@@ -36,7 +36,7 @@ public class SectorGenerateDialog extends BaseDialog{
                 int i = 0;
 
                 for(var plan : content.planets()){
-                    if(plan.generator == null || plan.sectors.size == 0) continue;
+                    if(plan.generator == null || plan.sectors.size == 0 || !plan.accessible) continue;
 
                     p.button(plan.localizedName, Styles.flatTogglet, () -> {
                         planet = plan;