Online tournaments

There are two main types of Core War tournament.

King of the Hill

In a King of the Hill (or KOTH) tournament Core War programs are submitted by email to a hill server. The hills vary in size, but usually contain 20 or 25 warriors. The challenger battles each program on the hill in turn. If the challenger's average score is high enough it enters the hill, pushing off the lowest scoring opponent.

There are two automated hill servers:


 * KOTH.org
 * KOTH@SAL

One Off Tournaments

Occasionally a one off tournament is organised as an alternative to playing on the hills. Often the rules include unusual settings or restrictions.

Here are a few interesting tournaments from the past:


 * The First International Core War Tournament
 * The Down the Core and More Tournament
 * The 2006 Spring Corewar Tournament
 * The Corewar Single Elimination Tournament 2005
 * The Spring Summer 2002 Corewar Tournament
 * The Koth Fall Corewar Tournament