The Infestation Pit is a grotesque, organic structure resembling a pulsating, fleshy mound with veins and tendrils spreading across its surface. Its form is asymmetrical, with a central orifice that occasionally emits a sickly green glow, hinting at the Zerg biomass within. The exterior is covered in a rough, chitinous texture, interspersed with patches of slimy, translucent membrane that quivers as if alive. The colors are predominantly dark purples and greens, with occasional flashes of bioluminescence that highlight its otherworldly nature.