Grav Armor is the classic Dwarfstar game of future armored warfare. From the site:
GRAV ARMOR is a fast-moving game of future armored warfare for 2 players. It realistically simulates the high-speed, high casualty combat between streaking gravitic vehicles, surface-effects craft, supersonic fighters, orbital dropships and power-suited infantry. The modular map sections allow scenarios to be played on radically different types of planets (earthlike, molten, frozen or airless).
James Catalano offers Bosconian D, a free solo boardgame based on the classic Namco video game. To find it, you have to scroll down to the bottom of the page, past his (very cool) retro video games downloads.
This Flickr album has a series of covers of British pulp science fiction magazines. There’s lots here for inspiration.
Full Thrust is an excellent set of starship combat rules — my personal favorite, in fact. Here are a set of modifications and statistics for playing Star Wars battles.
The recent tv movie Mutant Chronicles