A miniatures game, centered around the Roman Empire. The rules cover the period between the time when Augustus seized power (25 BC), right through the period of the Empire’s height, down through the crisis of the third century, and ending with the reign of Aurelian (275 AD).
Shooting and combat are determined using a number of ten-sided dice. The number depending on the size of the units involved. The dice rolls are modified by a few factors, and the result looked up on a simple chart. Units which take more than a specific number of casualties become "Shaken". Commanders have a limited ability to rally Shaken troops, returning them, at least temporarily, to more or less full effectiveness.
Games are scenario based rather than the familiar points based systems.
The turn sequence is based on a unique card based system which emphasizes command control and battlefield friction.