A multiplayer game which can be played by email or chat over a number days with screenshots of a battle field.

One in which the commander can only see as far as they would realistically see and has to rely on information being fed back from their sub-commanders.

Realistic ranges of weapons and tactics.

Not knowing what what the enemy units are up to unless you have eyes on them.

Lastly, for Fantasy or sci-fi.

Yes, it may well be Krieggspiel but with a new setting…..