More information from HSD “Sound and Silence,” page 98. Players race along lines, something like roller coaster tracks with plenty of ups and downs and loops. Though like ziplining, there’s no cart, a little bit of protection and gauntlets with tools to grab onto a loose array of interconnected lines. Not technically a combat sport, but given the velocities involved, if two players go for the same switch relay, one or both can come to a spectacular end.