A complete, separate maglev rail network: its own ground track, elevated track, ramps, support pylons, signals, locomotive and wagons, built with dedicated rail planners. No electricity or fuel needed - trains draw power from onboard void generators - but everything is expensive to build, requiring refined concrete, steel, solar panels and circuits. Extremely fast, extremely strong acceleration, and the track is indestructible so biters simply path around it.
Mods introducing new content into the game.