Multi-Player REQUIRE a FREE Created Account, to use... You can create one in-game ^^ It was created, so Hackers CAN*T play Multi-Player :P

The FREE Created Account, REQUIRE the use of a Serial Number (CD-Key, old word)... You can find the Serial Number, where we Download the game, here on GOG :)

PS..:
CAN*T play with Steam Guys... Until Patch 1.5 is released. Just so you know :)

I downloaded game yesterday and there are no servers available even after account creation. looks like this game jumped to steam bandwagon long ago...
I think it is possible to use direct IP connection. not very useful though..

Steam is on version 1.5 and this is 1.4......

The GOG weekly staff picks news post says:
"This is as good a time to get in on the fun, as we anticipate a big, important Rise of the Triad (2013) technical update! Soon, you'll be facing off against your Steam buddies on equal terms and equal footing."

So, I think Galaxy integration will be on its way.

And hopefully along w/ the 1.5 update

I bought the game on steam too with some spare card money and the multiplayer is pretty dead. If you are very lucky, you can find two near servers with more than 2 people playing. The community plays almost every saturday, but on Steam version. I think that, when GOG gets the 1.5, you wil be able to join those servers, but sadly, MP is dead still.

I hope they integrate this game to galaxy. 30000 new players surely will make multiplayer alive again!