I recently posted here that using computer games as a vicarious mode of living implies that one accepts substitutes for reality, thus providing behavioral evidence that the world could be simulated.
But what does a "computer game within a simulation universe mean"? In a simulation, one takes the image, representation or depiction of something as an acceptable substitute of that thing itself, so a computer game in a simulation would be treated as though it were the simulation itself. The resultant effect is that the computer game is treated as though it were the simulation, but then the simulation would be treated as though it were reality.
This is something we can test out: a computer analogy to the Heisenberg uncertainty principle, a made up rule of the simulation, is thus: The more certain you are where the pixels are (ie, the position of things), the slower you are to perceive the information represented (the momentum space).
Try it yourself and see what happens: does your reading speed increase or decrease as you change your screen resolution?
Correction to this:
>the slower you are to perceive the information represented
The less clearly one would be able to make out the information, not necessarily slower.