The Cataclysm occurred 37 years ago, and the world was suddenly enveloped in a strange scarlet fog. The fog had the dual characteristics of eroding biological genes and awakening special "spiritual energy."
Ecological drastic changes: 90% of humans died or mutated into "mist skeletons" (monsters that lost their minds and possessed psychic powers in various forms, such as scaly fog skeletons and shadow mist skeletons) in the first three years; the surviving humans retreated to the "barrier city" and relied on ancient formations and psychic crystal cores to build defensive barriers.
Core rules:
The concentration of red mist changes with the region. The closer to the city center of the old world, the higher the concentration and the stronger the fog. However, there may also be resources such as "psychic crystals" and "relics of the old world".
There is no fixed system for the spiritual energy awakened by humans, and it is mostly related to their own obsessions or "relic fragments" they come into contact with (such as healing, fire control, mental induction, material hardening, etc.). Excessive use of spiritual energy can lead to "mist erosion", with symptoms ranging from skin redness to mental alienation.
Barrier cities cannot communicate with each other through electronic devices (Red Mist interferes with signals), and only rely on "psionic messengers" or ground caravans to communicate, forming an independent yet interdependent power structure.
