It's about rules and control + long follow-up
You're not exactly trying to dismantle my challenge... but it was an awesome read, extremely balanced and fair portrayal of both sides, with advantages and disadvantages emphasized. Kudos to you man for that. Was a pleasure reading it.
Religion grants you eternal life. Gaming doesn't offer that. Eternal life (especially in some for of paradise is good. Therefore Religion == Good. Gaming == not good.
Well, for starters, eternal life was not conclusively proven to exist, so at best you can hope for an admission of "religion might grant you eternal life, but it might not" ;)
However, gaming CAN also give you some form of eternal life too ! Or, well, if not eternal, then at least longer than your actual life in some cases. And that's not a possibility, but a certainly. I mean, if you're good enough at it, that is. :P
For instance, your gaming characters could get played by other people long after you're gone, or your exploits could be remembered for a long time in various forms of halls of fame, and there are persistent worlds that never really remove your avatar from play for inactivity, so a part of you keeps on living as long as that game keeps going.
I suppose one difference is, you can jump into and out of the game without any consequences, moral quandaries or existential dilemmas. Religion uses all of the above as gentle, and sometimes not-so-gentle tools and techniques for guiding its flock of followers. Each religion is itself an organism that needs to reproduce and thrive, and to do so has to do things to ensure its own survival. Video games do not have such restrictions on their existence.
Well, we were talking about religion in general and gaming in general, but if you want to approach it from the angle of a random particular religion and some random particular game, that's ok too ;)
So... let's see... wait a second, video games sure _DO_ have similar restrictions ! A game, just like any religion, it can either become forgotten or it can be obsoleted by a newer, better, flashier game. A game, in order to "survive" (i.e. have followers), almost exactly like a religion, has to revise/improve itself from time to time (occasionally by releasing a sequel which brings in more fans overall and some extra fans to the old one too -vs- religions creating ofshoots which boost its overall image), it must "spread the word" using followers, it must raise capital in order to keep it going and progressing and advertising, and so on and so forth. The only real difference is in order of magnitude, for instance WoW has 11 million followers, yet even a minor religion usually has more than that. Scale, not methodology, that's the only difference.
As for the moral quandries and existential dilemmas... well, games are slowly but surely getting there. They even adopted (more or less) the same type of categorizing morals into "good" or evil" for most games, with in-game meters clearly displaying how good/bad you are (religions can only dream of such a device, for now). Sure, the "problems" presented might be simplistic, but the outcomes can be anywhere from crystal clear to very muddled and time-delayed (depending on what game you're playing - examples possible ranging from Knights of the Old Republic with a near instant good/bad feedback, the Mass Effect series which shifted to paragon/renegade yet response is also pretty much instant, but what about D&D-derived games, that gave a more complex good/neutral/evil and lawful/neutral/chaotic metering with less obvious jumps from one to another... and then you have games like "The Witcher", in which you don't actually have a meter you can see, but the consequences of your actions not only are they more like between shades of grey, but they also come back to slap you in the face long after you almost forgot what you actually did... and the game makes a point reminding you EXACTLY what you did, and what wide-reaching consequences of your actions were).
Not only that, but even simple strategy games, be it turn-based or real-time, as long as they allow diplomatic communications between players (be it in-game methods with either AI-controlled or player-controlled opponents, or out-of-game direct chats between players), they can all result in moral quandries and the suffering of consequences.
You can do better than that ;)