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!

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.

Malevolence Sci Fi Skirmish rules

Inspired by Hasslefree's miniatures, Malevolence is a small-scale sci fi skirmish game. Better yet -- the author says that he uses it for his Zombie Games.

Malevolence

Malevolence v0.2

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Dying Star Oblivion Skirmish Quickstart Rules

Dying Star Oblivion is an skirmish game based on Samsun Lobe's Dying Star series. You can get the files via their Facebook page here.

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Colonial Skirmish Rules

The Tyneside Wargames Club offers their free wargames rules for Colonial skirmishes.

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