The only mission is to produce enough so that the guy next door can't come and take it. The guy next door of course does the same. The end goal lies in infinity

The only mission is to produce enough so that the guy next door can't come and take it. The guy next door of course does the same. The end goal lies in infinity because the Red Queen's race can't be stopped. If you stop you will be overtaken and destroyed. This is all followed by the heat death.