diff --git a/index.html b/index.html
index 293d5ea..f9bc378 100644
--- a/index.html
+++ b/index.html
@@ -255,7 +255,7 @@
                   <svg class="rotate-180 fill-current w-4 h-6 mr-2" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20"><path d="M13 8V2H7v6H2l8 8 8-8h-5zM0 18h20v2H0v-2z"/></svg>
                   <span>Upload universes</span>
                 </button>
-                <button id="upload-universes" class="bg-red-800 hover:bg-red-900 text-white font-bold py-2 px-2 rounded-lg inline-flex items-center mx-4">
+                <button id="destroy-universes" class="bg-red-800 hover:bg-red-900 text-white font-bold py-2 px-2 rounded-lg inline-flex items-center mx-4">
                   <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="w-4 h-6 mr-2">
                   <path stroke-linecap="round" stroke-linejoin="round" d="M12 9v3.75m-9.303 3.376c-.866 1.5.217 3.374 1.948 3.374h14.71c1.73 0 2.813-1.874 1.948-3.374L13.949 3.378c-.866-1.5-3.032-1.5-3.898 0L2.697 16.126zM12 15.75h.007v.008H12v-.008z" />
                   </svg>
diff --git a/src/main.ts b/src/main.ts
index 3db261d..f9cb995 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -148,6 +148,10 @@ export class Editor {
     "upload-universes"
   ) as HTMLButtonElement;
 
+  destroy_universes_button: HTMLButtonElement = document.getElementById(
+    "destroy-universes"
+  ) as HTMLButtonElement;
+
   documentation_button: HTMLButtonElement = document.getElementById(
     "doc-button-1"
   ) as HTMLButtonElement;
@@ -565,6 +569,15 @@ export class Editor {
       this.showDocumentation();
     });
 
+    this.destroy_universes_button.addEventListener("click", () => {
+      if (confirm("Do you want to destroy all universes?")) {
+        this.universes = {
+          ...template_universes,
+        };
+        this.updateKnownUniversesView();
+      }
+    });
+
     this.upload_universe_button.addEventListener("click", () => {
       const fileInput = document.createElement("input");
       fileInput.type = "file";