Mike Renegar has created a new game based on Ed Teixiera's "Chain Reaction System", for use with Rebel Minis sci-fi miniatures line, called Raptorz. It looks like Space Hulk only for 15mm size! This comes as a pdf only release but that means you can print and reprint the corridor system. Hopefully they will release new play mats and scenarios for this. I'm pretty excited about this one and can't wait to try it out.
Although I think I'll adapt it for use with Khurasan's Space Demons (ahem...Aliens).