diff --git a/.xdp-Wichtig_Linux.png-9QCW3k b/.xdp-Wichtig_Linux.png-9QCW3k
new file mode 100644
index 0000000..01a589c
Binary files /dev/null and b/.xdp-Wichtig_Linux.png-9QCW3k differ
diff --git a/START_Linux.sh b/START_Linux.sh
new file mode 100755
index 0000000..ec9e905
--- /dev/null
+++ b/START_Linux.sh
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+PORT=8000
+BASE="http://localhost:${PORT}"
+
+python3 server.py &
+SERVER_PID=$!
+
+cleanup() {
+  kill "$SERVER_PID" 2>/dev/null || true
+}
+trap cleanup EXIT
+
+sleep 0.5
+
+# Default-Browser öffnen (meist Tabs)
+xdg-open "${BASE}/index.html" >/dev/null 2>&1 || true
+xdg-open "${BASE}/spieler.html" >/dev/null 2>&1 || true
+
+wait "$SERVER_PID"
diff --git a/START_Win.ps1 b/START_Win.ps1
new file mode 100644
index 0000000..07d8f87
--- /dev/null
+++ b/START_Win.ps1
@@ -0,0 +1,14 @@
+$Port = 8000
+$Base = "http://localhost:$Port"
+
+# Server starten
+$server = Start-Process -PassThru -NoNewWindow python "server.py"
+
+Start-Sleep -Milliseconds 500
+
+# Öffnet im Standardbrowser
+Start-Process "$Base/index.html"
+Start-Process "$Base/spieler.html"
+
+Write-Host "Server läuft (PID $($server.Id)). Zum Beenden: Fenster schließen oder Prozess killen."
+Wait-Process -Id $server.Id
diff --git a/index.html b/index.html
index 1e1ac5b..e7f3250 100644
--- a/index.html
+++ b/index.html
@@ -54,7 +54,7 @@
   <canvas id="mapCanvas"></canvas>
 
 <iframe id="worldmap-iframe" 
-  src="https://map.arenos.danielnagel.at"
+  src="https://map.arenos.online"
   style="display: none; position: absolute; top: 0; left: 0; width: 100%; height: calc(100% - 130px); z-index: 8000; border: none;">
 </iframe>
 
diff --git a/server.py b/server.py
new file mode 100644
index 0000000..bb2f39e
--- /dev/null
+++ b/server.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+import json
+import os
+from http.server import ThreadingHTTPServer, SimpleHTTPRequestHandler
+from urllib.parse import urlparse, unquote
+
+MAPS_DIR = "maps"
+ALLOWED_EXT = {".png", ".jpg", ".jpeg", ".webp", ".gif"}
+
+class Handler(SimpleHTTPRequestHandler):
+    def do_GET(self):
+        parsed = urlparse(self.path)
+
+        # API: list maps (used by index.html)
+        if parsed.path == "/list-maps":
+            self._handle_list_maps()
+            return
+
+        # Convenience: "/" -> "/index.html"
+        if parsed.path == "/":
+            self.path = "/index.html"
+
+        super().do_GET()
+
+    def _handle_list_maps(self):
+        maps = []
+        if os.path.isdir(MAPS_DIR):
+            for name in sorted(os.listdir(MAPS_DIR)):
+                p = os.path.join(MAPS_DIR, name)
+                ext = os.path.splitext(name)[1].lower()
+                if os.path.isfile(p) and ext in ALLOWED_EXT:
+                    maps.append(f"{MAPS_DIR}/{name}")
+
+        data = json.dumps(maps).encode("utf-8")
+        self.send_response(200)
+        self.send_header("Content-Type", "application/json; charset=utf-8")
+        self.send_header("Content-Length", str(len(data)))
+        self.end_headers()
+        self.wfile.write(data)
+
+def main():
+    host = "0.0.0.0"
+    port = 8000
+    httpd = ThreadingHTTPServer((host, port), Handler)
+    print(f"Serving on http://{host}:{port}")
+    httpd.serve_forever()
+
+if __name__ == "__main__":
+    main()
diff --git a/spieler.html b/spieler.html
index 855cd51..851889c 100644
--- a/spieler.html
+++ b/spieler.html
@@ -26,7 +26,7 @@
   <script src="slave.js"></script>
 
   <iframe id="worldmap-iframe"
-    src="https://map.arenos.danielnagel.at"
+    src="https://map.arenos.online"
     style="display: none; position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 9000; border: none;">
   </iframe>