I liked Drox Operative a lot, but unfortunately it also turned me off Soldak.
See, there's a bug / balance issue in the game - NPC planets only get stronger linearly as sector level goes up, but monsters get stronger at quadratic or better rates. So by sector level 75 or so, all the NPC planets get wiped out in no more than an hour.
The game is basically unplayable at upper levels except on tiny maps, max races, no Drox quests, and a fair amount of luck. When this was pointed out to the developer, he basically said "Huh. Well, sucks for you" and refused to fix it. He just wasn't interested in Drox anymore.
I have no problem with graphics, but I have no interest in a game that might be abandoned half-broken at any time. (Same reason I will never touch StarDrive 2).