Zi

"AREA 3 CIRCULATORY / RESPIRATORY SYSTEM - ZI: This is where life-sustaining fluids needed by the Rusalka are purified and pumped back through to the prisons."^[1]

Zi is the third area that Trace must travel through in order to revive the Rusalki. It is a diverse underground area, including industrialized sections with steam vents and other machinery, as well as more organic cavernous areas. It has a prison, a Power Filter with connected Venous Filtration, Venous Maintenance areas and an Arterial Shaft. Trace will meet Veruska here in the bottom right corner. The area connects to Indi to the north, Absu to the west, and Kur to the east. Here, the track "Vital Tide" plays.

There is also a hallucination of another Trace in the tall room to the left of Kur's entrance room. This Trace is seen at the top going into the left door for only a few frames.