Iron Duke is a computer moderated rule system. What that means is that you still play your wargame with figures (or counters if you prefer) aided by a computer program. The program keeps track of the casualties and fatigue for your units. The computer can track this without the player having to look up a complex series of charts.
There are several parts to the program. The first part allows you to create and edit army lists. You can assign morale and experience ratings to commanders and units. The second part keeps track of the casualties and fatigue of units during a battle.
Iron Duke has a campaign map and can also be used to fight Napoleonic naval actions.
Click for the official Iron Duke website
There is a Yahoo discussion group.
Click for the Yahoo group including Iron Duke