schneeland
Hero
I guess it's a question of expectations - I read the Gray Death trilogy not too long ago, and yes, the characters have about as much depth as a shallow puddle in summer, but overall, I found it enjoyable. But it has large, stompy robots with lots of guns, and the plot was ok.Re: Battletech I feel like there's a lot of rose-tinting going on. I loved the Battletech novels back in the day, but I was a child. I tried re-reading one in my 30s and it was... bad. Real bad.
I think if someone competent worked on this, at least the stuff up to the clan invasion would be good as the basis of an animated series.
Other than that: assuming one is generally into it, early Shadowrun has a few decent novels - 2XS is probably the best one, but I also like the Secrets of Power trilogy.
I do agree with @Ruin Explorer, though, that most game-based fiction is not exactly groundbreaking and at best enjoyable, and usually not something that stands out in its genre.