Bara api

A sealed, dimly lit area containing tanks filled with bioluminescent algae. Here, the water undergoes a final stage of purification, with the algae consuming remaining organic impurities and adding a faint, natural luminescence. This chamber is rumored to be the location of Valve's unique water purity tech, and is shrouded in secrecy, guarded by the most loyal Hegemony members. This is a room within the Main Filtration Plant, and can only be accessed once inside the plant.

The chamber is filled with large, cylindrical tanks of glowing algae, their bioluminescence illuminating the otherwise dark space. The air is thick with humidity, and the sound of bubbling water echoes softly, creating an otherworldly ambiance.