https://bugs.winehq.org/show_bug.cgi?id=40103
--- Comment #5 from Bruno Jesus 00cpxxx@gmail.com --- (In reply to fjfrackiewicz from comment #4)
I have the GOG version of Impossible Creatures and in order to get multiplayer in that version you need to run "winetricks directplay". Not sure if this helps any but I thought I'd mention it :)
Thanks for the test, can you attach a +winsock log with and without directplay, please? The bug is abandoned but maybe we could get some hint.