KKnD2: Krossfire is the sequel to KKnD in the KKnD series developed by Beam Software and published by Melbourne House in 1998 for Microsoft Windows. It was released on PlayStation in Europe in late 1998 to early 1999 as KKnD: Krossfire. It is set in the year 2179, 100 years after the Nuclear World War. After spending another four decades underground, the Survivors rose up to a new enemy: the Series 9. The Series 9 robots are machines that have advanced from their farming origins (having the original programming damaged by the nuclear radiation) and taken up arms against the humans, Evolved and Survivor, who destroyed their precious crops, their one and only reason for functioning.