IGZ is an alternative to Hamachi, Leaf, and similar programs.

I don't understand how simultaneous turns can turn Heroes into a different game? I'll repeat again - I'm implementing simultaneous turns without changing the gameplay at all! That is, it is assumed that players take turns simultaneously up to turn 116, i.e., until they even have a chance to meet! In the end, this will be configurable, and even the most skeptical players will be able to enable this feature, for example, up to turn 113.