LAN multiplayer should be available without GOG Galaxy. We will look into it tomorrow.
Can you give me a definitive answer as to whether the game installs Galaxy even if you're only ever going to play offline, single player mode? Is there a classic installer download (without Galaxy at all) as some threads in this forum have made me doubt now that this is the case. I'd just like to make sure before I decide whether I'm going to buy the game or not. Thanks.
I have the answer for this. In fact, I installed the game with standalone installer first. The game does not install client by default if you choose it to be so at the beginning of the installation.
After having frequent connection drops in multiplayer, I had to uninstall and reinstall via client.
So yes, you can install the game with standalone installer, although I can not vouch for offline multiplay. I only tried online multiplay with the standalone installation so I suppose offline lan sould work as well (I don't see why it would not).
I should add that I had the client open while playing the game, otherwise it would not let me play, even in standalone installation. But as Paczyk said above, OFFLINE LAN should work without client in normal circumstances..