Exiled to the Void

Year 2107. Humanity begins active exploration of the Oort Cloud far beyond the orbit of Pluto. Mining stations and interstellar flight preparation bases start to emerge in this dark, primordial area. Year 2108. Human activity violates the fragile gravitational balance, which, as it turned out, was maintained in the Oort Cloud since the formation of the Solar system. Millions of comets descended from their orbits, destabilizing the Scattered Disk and the Kuiper Belt and collapsing a chaotic downpour into the inner regions of the Solar system. Year 2111. Civilization is virtually destroyed. The cities of the Earth and the colonies on the Moon and Mars are critically damaged. Remaining survivors are scattered throughout the Solar System, trying to build a new life in drastically worsening conditions. Year 2118. The technology of plasma deflectors is mastered - high-energy shields boosted by enormously powerful magnets appear to be reliable enough to stop an approaching comet or asteroid...