If the universe was fine tuned for our life...

[Heywood]

It appears that our reality is a sub reality.

Oh? Less assertion more elaboration. What leads you to this conclusion?

The apparent fine tuning of our universe toward emergent complexity leads me to this conclusion. The apparent fine tuning can really only be explained by an intellect(which must reside in its own reality) or a multiverse. Sure you can think up a couple more...but those explanations are pretty easily dismissed. Intellect and multiverse....not so easily dismissed. If I was an atheist I would believe in a multiverse. I am not an atheists because I make observations about the world which suggests the existence of an intellect greater than human intellect.

Now as far as whether or not Minecraft is a sub reality of our reality? That is an assumption that I make. You are free to accept or reject that assumption. I agree that minecraft is substantially different than our reality but not enough to say it isn't a sub reality.

You can demolish my argument by providing an example of something which can reasonably be construed as a sub reality....but which came into existence without the hand of an intellect. My idea of a sub reality is pretty broad so this should be easy for you(if my argument is indeed faulty).