I was wondering if there was a way to modify a world's seed. Obviously, this would not effect old chunks, but I only need it to affect new ones. I'd like to be able to do this because I'm creating a plugin that will be used for a very specific type of survival minigame server. It will use the standard Minecraft chunk generator, but I've created a BlockPopulator to create a "fenced in" area out of bedrock. The problem is, I want the terrain to change every game, so I think the simplest way would be to change the world's seed and regenerate the chunks. I know that such a method would take a bit of time to do, but that is not a problem in my case. Unfortunately, as far as I can tell, Bukkit provides no methods for actually modifying a World's seed. The only method I could think of would be deleting the world and generating a new one, but this causes a lot of problems that seem unnecessary when a simple seed modification would be sufficient. Does anyone know if this is possible?