science fiction

Bugs Miniatures Rules

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Brian Gill offers Bugs!, a set of miniatures rules for staging battles with large numbers of plastic insects.

Bugs

Star Wars Miniatures Mass Battles Conversions

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Arthur Chang has written a set of add-on rules for playing massed battles with the Wizards of the Coast rules for Star Wars miniatures.

Star Breach Sci Fi Rules

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Star Breach is a set of science fiction rules that are miniatures agnostic. The free 1st edition core rules are available at the link. There’s also a deluxe version you can buy.

Planet 28 Sci Fi Skirmish Rules

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Planet 28 is a set of free wargames rules for “quick narrative games between warbands of warriors, mutants, and outcasts.”