Glory In The Arena is a set of rules for playing gladiatorial combat with 54mm figures.
Rules: Ancients
Pharaoh Rides To War
Pharaoh Rides To War is a set of rules for 20mm battles between Egyptians and Assyrians.
The Caveman Clash Manual
Caveman Clash is a set of free wargames rules for playing skirmishes between cavemen. There also are paper figures if you don’t happen to have cavemen available.
Impetus Basic Rules Update
There’s been an update for the free basic rules for Impetus, a set of ancient and medieval wargames rules.
Ancients By Ral
The Jackson Gamers offer Ancients By Ral, an ancients version of the venerable Rules By Ral system.