Matt Fritz offers a set of free miniatures rules called Across the Alps. The rules are for recreating the Battle of Trebbia from 218 BC, when Hannibal crossed the Alps to face the Roman Army at the river Trebbia. The rules are easy to play, being designed for Matt’s students. There also is a link there to paper figures.
And now for the ultimate reference site on the Roman Army: Red Rampant. This has got wonderful illustrations for just about everything you can think of relating to the Roman army and its enemies. It’s like an Osprey book, only much, much cheaper.
Jim Naughton has written a set of campaign rules for DBA
about the last stage of the Roman Republic. In it, each player will represent a Praetor, the second rank of Roman senior magistrates, and the lowest rank empowered with Imperium, the power to command Roman armies and exercise governorship of a Roman province. Eventually some praetors will advance to the rank of consul, and occasionally dictator. Ultimately the goal is to amass sufficient prestige to stand unchallenged as First Man in Rome.
Hat Tip: Rich Baier
The Illustrated History of the Roman Empire website is just that — a neat historical site with loads of pictures and interactive map. There is lots of fodder here for historical wargamers.
The I Live With Cats Blog has a variant for Lion Rampant featuring Late Romans.