IceTraders a heavy duty interactive space opera

designed by John Cooper documented by Jacob Davenport

Amplifiers - Black ships and systems

Power: a black ship may be sacrificed along with another non-black ship to increase the power of that non-black ship's sacrifice by the size of the black ship.  A ship of any color in a black system could do the same.

Concentration: when five or more black ships are in one system, the system becomes a black hole.  Indicate this with a small black piece stacked on top of the system marker.  (Indicate a dual system with a black piece beside the system marker.)  Ships may move into a connected black hole system, but ships in a black hole system may only move to other connected black hole systems.