If its turn based... just use blitz's built in TCP/IP command set and you will be fine. Your blitz client does not at all care what the server is running, running on, or coded in. You could have a commodore 64 setup to receive tcp commands and have blitz talk to it... You only have to focus on two things. Sending data to the server that you want. And listening for incoming data from the server. There are a lot of materials out there to read to help you get started with this, but it sounds like the server guys know what they are doing if they are using C++ and coding a game server. So just work with them about a data model. Should be cake.