Bio-mass, a radioactive orange-red substance, serves as the ammunition for most of the Drudge weapons, such as the Strike Rifle, Striker, Shrieker, and Warp Pistol. Smaller bio-masses are used as Radiation grenades. Not much else is known about it, except for what Prometheus told Michael Ford: "Drudge weapons utilize a unique bio-mass that can be converted into a variety of damage effects. It's far more versatile than a plasma core and several times as deadly."

Bio-mass can be seen in the center of the Strike Rifle.

You can see the bio-mass ball come out of a Drudge "ammo cache" when you activate it.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.