The Battle of Adrianople Ancients Rules

The Junior General offers a set of free wargames rules — along with figures — for The Battle of Adrianople from 378 AD. Historically, things did not go well for the Romans against the Visigoths.

Link

The Battle of Chaeronea, 338 BC Rules

The Battle of Chaeronea (338 BC) featured the Macedonians under Philip against a combined force from Athens and Thebes. The Junior General has rules and paper figures at the links.

Rules Link

Paper Wargames Figures: Link

Schlachtfield Ancients

Schlachtfield is less a set of free wargames rules than a series of thoughts about ancients wargames. It is interesting nonetheless.

Link

Beer and Pretzels Modern Micro Armor

GHQ has a free pdf of its Beer and Pretzels Modern Micro Armor game, formerly a commercial effort, now a set of free wargames rules.

Trireme Game Rules

The Trireme Battles blog offers a set of free wargames rules for trireme battles.

Link