Fr. Aelred Glidden, who was a frequent contributor to the late, lamented wargames magazine MWAN offers Quick Ancients, a set of free wargames rules for
ancients
Napnuts Masters of the Mediterranean Campaign
Masters of the Mediterranean is a set of campaign rules for ancients.
Naumachiae Ancients Naval Rules
Naumachiae is a set of rules for ancients naval warfare for 1/12000 miniatures.
Morschauser Ancient Rules
Here’s a set of classic free wargames rules for ancients from Joseph Morschauser.
Life By The Blade Wargames Rules
Life by The Blade is a set of free wargames rules for ancients warfare.