Cosmoteer stable update 0.13.4 is now available! This update adds "Online" multiplayer so that you can play with friends and others online without having to setup port-forwarding or share your I.P. address with strangers. This update also makes significant improvements to ship movement A.I., rebalances weapon ranges to work better with large ships, and makes a handful of other improvements and fixes.
Download 0.13.4
Full Changelog
More About Online Dedicated Servers:
Dedicated servers are a new way to play multiplayer without having to deal with things like port-forwarding and sharing your I.P. address. Just click "Multiplayer" on the title screen, select the "Online" tab at the top, choose what server you want to play on from the dropdown list, and voila, you can chat & play with anyone else on that server, just as if you were on the same LAN as them.
Anyone can host their own dedicated server (using the CosmoServer.exe program now included with Cosmoteer; I'll write a wiki guide for it later), but I'm already running an official server called Official U.S. East, which you should see in your dropdown list of servers and are encouraged to join!
Because the server itself runs no gameplay logic (it basically just relays network communications between the players on that server), all mods should be compatible with all servers. You'll still of course need the same mods as the other player's you're playing with.
I current have no idea how many people a single dedicated server can support. I've set a limit of 100 people for the Official U.S. East server, but I will adjust that up or down as necessary. Also, expect the server to crash occasionally, since I'm still tracking down all the bugs. In theory it should automatically restart if it ever goes down, but you'll get kicked out of any games you're playing.
Have fun! Hopefully this makes playing multiplayer a lot easier!