Akula’s Rules: Skirmish Edition is a set of two page rules for use in zombie games.
skirmish
Zed or Alive Zombie Skirmish Game
Zed or Alive is a set of free wargames rules for Zombie Apocalypse skirmishes. To play, you’ll also need a copy of Savage Worlds Showdown (also free). The authors write:
Zed or Alive is a campaign-based miniatures skirmish game using the award-winning Savage Worlds: Showdown! system set in the years following the zombie apocalypse. You control one of several human group types such as Survivors, Tribals, or Military and battle each other and the ever-present zombie menace to gain weapons, supplies, and dominance!
Alternately, you may choose to play as a Virus Strain, gaining evolutionary material with every battle and evolving to become increasingly lethal!
This PDF rulebook provides players with a fast, furious, and fun miniatures game that allows them to use any zombie or survivor figures to play out campaigns just like your favorite zombie movies and shows!
Iron Choirs Fantasy Post Apocalypse Skirmish Rules
Iron Choirs is a skirmish game set in a fantasy post apocalyptic world. It’s a work in progress, but it is free right now at Wargame Vault. It could be of use.
Most Irregular Horse and Musket Rules
Most Irregular is horse and musket rules extension to the Fast and Dirty skirmish rules, found on the same page.
Dying Star Oblivion Skirmish Quickstart Rules
Dying Star Oblivion is an skirmish game based on Samsun Lobe’s Dying Star series