diff --git a/ops/nixos/clouvider-lon01/default.nix b/ops/nixos/clouvider-lon01/default.nix
index 33ff8813ad..207d9a24ad 100644
--- a/ops/nixos/clouvider-lon01/default.nix
+++ b/ops/nixos/clouvider-lon01/default.nix
@@ -115,7 +115,11 @@ in {
       allowPing = true;
       allowedTCPPorts = [
         80 443  # HTTP/nginx
-        6697  # znc
+        6697    # znc
+        34197   # factorio
+      ];
+      allowedUDPPorts = [
+        34197   # factorio
       ];
     };
   };