Quote: " Using the Advanced Cube World I can only see this IP and not my actual IP address from my ISP. "
DarkNet can only detect local interfaces which are IP addresses that can be used from within your LAN.
So if someone on a computer on your LAN wants to connect to a server on the LAN they should use the local IP that DarkNet detects.
If someone wants to connect from outside your LAN then they should use your external IP (
www.whatismyip.com). Normally you have to set up port forwarding. This is usually done by manually configuring your router, but can be done using Universal Plug and Play. You should forward an external port to a local IP and port that the DarkNet server is using. External clients should then connect to the external IP and port.
Quote: "When people run the Advanced Cube World, are there multiple IP addresses to chose from?"
Sometimes because you can have more than one network connection at the same time.