Let's be honest, I'm sure we've all thought of the mechanics in the game novels and honestly they are all unfairly unbalanced, destroy the game economy, and honestly would break any game in real life.
After reading a bunch of novels I've just come to see that authors kinda suck at making a balanced game that's fun to play. Let's take for example Tempest of the Stellar War. In the game there people have to buy with real life currency the more advanced mechs and there's not stated way to obtain part or new mechs, making it the definition of pay to win. For that matter almost all of the games presented in novels are pay to win in one way or another.
Another thing I just find jarring is the turtle slow progression of levels in game. In some novels obtaining levels just sound like such a chore and no fun at all, and any other class that's not a fighting one is out of luck when it comes to power levelling because most experience is awarded to fighting. That would keep any prospective player from trying any of class that's not one made for fighting. Which is stupid for a game that gives players the option for various jobs and classes. Why would I be incentivized to play a blacksmith if I'm leveling and obtaining stats at a tenth of the speed of a warrior class?
And speaking of stats, why some authors love to be numberphiles and put stats and bars in the millions and billions. Like that's such a cluttered and ugly UI to look at and would be a pain to keep track of. I get the need to emphasize the great power and expenditure of attacks and the like but that is more easily achieved through contrast between characters, than throwing giant numbers at the reader that at the end of the day mean nothing and will never remember.
Seriously, a game Novel is way more enjoyable to read when the game mechanics and the like is better defined and balanced cuz let's be honest, no one would be playing these games if they came out in real life, let alone become such huge success as stated in novels.