Board Thread:Questions and Answers/@comment-96.54.0.16-20130506010653/@comment-9107793-20130506050038

I don't think that you are serious but I'll answer you any way just in case you are. World anchors or any other chunk loaders will not work in singleplayer when you are offline because you have turned the game off. They will keep chunks loaded as long as you are still playing in the world.

Same thing happens in SMP when you turn the server off.