Well, I am a huge Aquanox fan. Those original German versions are awesome.
Detailed, complex world. Cool characters. Crazy action.
Sadly, every one of the three games has it's own flaw:
Schleichfahrt (=Archimedian Dynasty for the International market): PCs were not really ready for these kind of games. Glitches, AI problems (ever noticed that any vessel can just fly/swim through hills? but you) and the "flying" model wasn't all that great too. Bad Soundtrack too.
Aquanox1 was gorgeous but suffered from lots of bad design choices (like the "invisible sky wall"
). Many of those were patched out but a few, like the horrible menu system remained. Again, silly soundtrack.
Aquanox2 had even better graphics (still looks good today) but inherited some flaws of the first one, no surprise since it was actually planned as an addon. The whole "comic" effects were fixed too and we finally had a good music choice. The downside were some plotholes (no matter how fascinating it was) and a few horrible missions.
Mh well i played the german version and i can just say i was blown away by it at the time. Got rave reviews in all the gaming mags at the time too and well deserved too.
The "fly/swimming" model was certainly "different" than the flying model in a spacesim, but it never struck me as any kind of "drawback".
On the other hand, combat, mission design and story in general were absolutely top notch and makes it one of the few games that i still remember fondly after all the years even now.
Aquanox on the other hand i perceived as a step backward (giant squid fish thingy now ? yeah :yawn:)... and Aquanox 2 basically was a different game alltogether.
The excellence of storytelling and suspense of the original Schleichfahrt was never reached by the later titles, imho anyways.
As far as bugs are concerned, i didn't notice any

anyways, different times... but PCs were definitely way more than ready for games of that kind at the time. We are talking post X-Wing already mind you ... and i played I-War (1) in the same year which reached several levels of awesomeness never known before (and not after either). Especially the elaborate mission design and branching storyline (that actually allowed you to switch sides, permanently, in the middle of a sabotaged peace conference, where everyone suddenly started shooting at each other harr... or crash land your full sized corvette on a carrier built for small fighters, while everyone on your bridge (and on the carrier) was going "nooo noo nonono aaaaaaarghhh!" (lol) (complete with vid sequence shearing all kinds of things off your ship) in order to escape an ambush because your jump engines were down... or using your (disarmed) ship itself as a weapon by ramming the evil presidents cruiser in the final mission while escaping with your bridge/escape module (which also struck the cruiser if you weren't too careful.. I-War actually featured newtonian physics to a large and prominent extent heh)).
Out of all the space games i played... I-War still sticks in the mind as the one with the absolutely craziest mission design that made you think on the fly and often do very unconventional things that went way past the expected dogfighting gameplay. (Being captured by pirates who started throwing your crew out, whose bodies you could see floating past the windows of your bridge while you were arguing with their leader, was another favorite lol).
Matter of fact... looking back... you could argue that PCs of the time were a platform in it's prime that gifted us with games that tried bold things that you really can not find anymore at all in today's mass market adjusted gaming market... not unless you look for indie games/ mods anyways. Well maybe that's inaccurate. PC as a platform are more powerful nowadays by several orders of magnitude, what has gotten worse is the gaming market.... one could argue it isn't in it's prime anymore or at least it's several magnitudes less daring and innovative than it had been previously, no matter what platform you actually look at.
Back in the day you still had a huge amount of developpers actually enthusiastically making games that they themselves wanted to play.
Nowadays that is the exception,... with the majority of games being the result of a market study, the gazillionst to the letter clone of a proven concept (the suits don't like risks or chances), or a sequel to a glorious game of the past (with the sequel usually being less complex with inferior gameplay due to market considerations).
Heck... back in the day we had spacesims like WC3/WC4 that blew a few millions at life-acted cutscenes, where's that today? (and nope the paltry CnC3/Red Alert cutscenes do not even begin to compare to what was done in WC3/WC4 back in the day:p)
We got better graphics today... but as far as gameplay, gameplay complexity, storylines in general and even story presentation goes (thinking WC3/4 for presentation), the commercial gaming market has been on a downhill slope for a long time sadly. Not even in the storydriven RPG genre is a glimmer of light: The games that Bioware releases nowadays do not even begin to compare to the awesomeness that was Baldurs Gate 2 or Planescape:Torment back in the day. Mass Effect ? Seriously... not even in the same ballpark anymore :/.