I also briefly looked into this rule before posting 345/2-c/3. It is indeed similar to Starwars, but tends to grow random large "islands" instead of Starwars-like "army bases". Also, unlike 345/2-c/3, LightShow does not support "trains" at all, but, as I see now, has amazing diagonal ships (I did not notice them).
Another "child" of Starwars and BB is 345/2-k/3. It's somewhat more explosive and has both "army bases" and "islands". 345/2-n/3 is very explosive, but still interesting. I guess it's worth exploring the entire family of such rules.