Serious Sam II by Croteam - demo multiplayer quick fix
If server was not behind a NAT, or was behind a non-strict NAT, client would
get the message "Game session is no longer available" when trying to join the
Here is a quick fix for that problem: Sam2Demo-GameSpyQuickFix.zip
It contains two dlls that need to be replaced for this to work. At least the
client needs to be patched and the patched client should be able to connect
even to unpatched servers.