How to get my subdomains to direct to different servers on the same machine?

In short, I have a godaddy domain and I also have two servers hosted on my linux machine. I have the primary server connected to my domain without a subdomain through the default minecraft port.

I need to connect the second server to a subdomain such as events.serverdomain.com but godaddy doesn't seem to give a straightforward way to add ports to the desired destination, else I could do it perfectly fine.

I am completely stumped here, can anyone help?