it seems that currently playing multiplayer online doesnt work yet, but you can use a VPN like Hamachi to have multiple people connect to a singular network, so basically connection through LAN instead of internet. this method seems to work perfectly fine, and it's relatively easy.
For the multiplayer we had to enable port forwarding and used the public IP address of the hosting player. I don't remember if we used the IP:port formula or just the IP to connect. You should find the port in the lower left portion of the screen when hosting a multiplayer game Hope this can help!
