Need game suggestions

[Crossroads]

I would definitively agree with HSL that you just cannot go wrong with JTCS, as PBEM is what you are after. :)

As for the other games, I am sorry I can't much help you apart from suggesting the other Blitz forums.

I am sure they can point out the goods and the bads of their games, Combat Mission and TOAW would appear as choices below and above the scale of JTCS engine.

Good luck in your search, let us know what you ended up with!