In 2030, the "Godfall Abyss" suddenly appeared in the world - every three months, a "Chosen One" from each country was randomly selected and put into a different space battlefield for a survival trial. If the trial fails, the country will be punished by natural disasters (earthquakes, plagues, resource depletion, etc.); If the trial succeeds, the country will receive generous rewards (technological breakthroughs, resource recovery, etc.)
