A friend and me would like to play HOMM 3 or 4 online against each other but without the need to finish the game in a single session. Rather, we would each like to be able to make the move, then do something different and only switch back when its our turn again (maybe receive a signal), so that a game might go over several days or possibly even weeks! You get what I mean.
I searched the internet for existing solutions but without any success so far.
The only possibility I could think up on the spot was sending (e.g. mailing or whatever) each other an updated savegame each time, which is kind of clumsy...
Do you know of any more elegant solution? Whether it already exists, or how it might be put into practice? I highly appreciate your suggestions!