Worldhordes work rather simply. As zombies spawn in naturally into your world they are saved into a global reserve. If global reserves are met and the member counts are accurate. The worldhordes will begin to form infested chunks and wondering hordes. Wandering hordes are living chunks spawning waves or zombies when loaded. Infested chunks operate as a chunk that has a deposit of the world reserves. Clearing these rewards the player with player claims used to prevent spawns and the lowered world population + any dangers the spawns of zombies near a base can cause.
