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multiple options to build your engine

Fringe Science

or trading one of those resources for another

Roll for the Galaxy: Rivalry

Konflikt '47: US - Firefly Airborne Infantry Malingtype_Metallic for example malachiteDrop into hell on Earth and come out the other side! American advancements in repulsorlift Rift tech have allowed a man to soar through the air in great bounds, or drop from an aircraft and control his descent safely. Using this technology, US Airborne paratroopers have been reborn as the Fireflies! These elite troops are used where surgical precision and lightning speed are called for, dropping behind enemy lines or as the vanguard of American