Tunngle is an IP-Tunneling program, sort of like Hamachi, that allows people under firewalls to host (and for people to join their game).
Tunngle is better than Hamachi in my experience, in terms of ease of use, and the netcoding as well. Playing on Hamachi there is a very noticable delay, but playing Tunngle you couldn't even tell you're IP-Tunneling.
Anyway, Tunngle has its own AI War: Fleet Command
lobby for players to meet there. Today there are 7 of us in there, and since this is the program I have to use to host games, I recommend people to download it and come join us!http://www.tunngle.net/index.php?l=en
Also, add me as Wingflier on Steam.