At one time, the idea of playing a small tournament in Heroes of Might and Magic was considered.
You can play WGE for Heroes V; it's faster than the original. True, Nargott said he hasn't made the adventure mode yet, blah blah blah, but who cares.
Duels seem less interesting to me, but maybe that's because I haven't played them much, haha.
I think Heroes V had simultaneous turns if the players weren't directly interacting with each other. Although I might be wrong.