Wrath of the Gods is a set of free wargames rules for skirmishes with a classical mythological flavor.
Rules: Ancients
Justified Ancients Rules
Justified Ancients is a set of free wargames rules for simple ancients battle games. The author writes:
Justified Ancients is a fast paced element based wargame that takes simple mechanics to produce a beleivable result. Easy to learn they are percet for filling in that last half hour before the Pub or playing a huge battle in two hours.
Wargames Research Group Ancients – 5th Edition
Wargames Research Group has a page with lots of their older sets available, including the Fifth Edition Ancients, which were the standard for many years.
The Games: Blood and Spectacle Gladiator Rules
The Games: Blood and Spectacle are a set of free wargames rules for gladiator games.
Charles Sweet’s Rules For An Ancients Wargame
Charles and David Sweet were among the founders of American wargaming. Here are his rules for ancient wargaming.