Factorio instances

I'm running a (24/7) GCP Compute Engine instances running the fantastic game Factorio. The server has 2 vCPU and 2 GB of RAM. Here's a list of their names:

If the game servers are not listed in the public server browser, the IP of the GCP instance is factorio.mattmahnke.xyz and the ports start at Factorio's default (34197) and increments beyond.