Smili, some responses
I also would've liked to have to solve the sound puzzle myself too.
I was wanting to see the machine come to life, maybe shooting arcs of lightning out to the the monoliths. I sortof just wanted to understand what the point of the machine was, and why it was on this island w/ a small land settlement. Is it a little communications outpost? Does the land settlement have anything to do with the the endgame/ or is it a separate issue (I think maybe they're separate).
The monoliths and central monument certainly act as a kind of Sentinel cf Arthur C. Clarke's short story that was the precursor to the movie 2001. In this case there is a separate beacon sending out a come-hither signal. I wonder what that signal contains: information on how to build a stardrive, perhaps?
But who is the Sentinel signalling to? It can't be the creatures that disassembled the rover, since they are obviously still on-planet. So I think there are at least two intelligent species involved at this point.
The ruined geodesic items may be shelters from a long-ago expedition (but not necessarily the one that placed the monuments and obelisks. or the transmitter) or may be almost-buried landers or ships from such an expedition. No way to tell without a digger (so why isn't there one on the rover, or have I answered my own question). This also raises the possibility that there may be alien teleoperated rovers that we have not seen yet.
Another main interest.
Click for my thoughts on it. Don't click if you haven't thought about them.
I had a good shot going up the sandy slope where my first rover got destroyed. There was nothing there prior. My theory:
The hydropods are a way for the intelligent creature that disassembled my rover to carry it's environment with it - kindof like scuba gear for humans.
Further damp thoughts
I have a panorama shot taken by the rover in the same location that it was destroyed at. No Hydropods there beforehand. Watery sandripples though. (they are smaller and shallower than windblown undulations, at least round here, but I am no expert on sand formations).
The hydropods are obviously associated with whatever took the rover apart.
And if you've paid attention during the endgame you will also know that they appear there, in two states.
Strong evidence that there is an intelligent marine species around, perhaps using hydropods as reverse-scuba gear?
I also wanted to see tides - maybe giving me a chance to get out to that little island.
There have to be tides - even without moons, unless the planet's orbit is perfectly circular, there will be solar tides. Those two moons really should have a noticeable effect on sea level. Unless the whole island is floating (and that's been thought of before in SF, though I can't track down the stories just yet)
In defence of the developers, calculating the tides associated with two moons and the sun is likely to be quite complex
Also wanted to catch the big motobiont
hunting, but gave up trying. Just saw him sleeping and walking around. I assume he stalks the chickens on the island.
Ultimately it ends up with more unanswered questions about the world than answered. The conspiracy plot while resolved was largely separate from my interest in the world itself, and I wanted to know more about this world that I was exploring.
My friend and I have located two sleeping spots for the razorbacks - and there are at least two animals, as we've both seen two in shot at the same time. We think that they each have their own sleeping spot.
Neither of us has yet seen a razorback stalking any prey, never mind making a kill. We think that the bristletongue is the most likely prey, as the other known animal species hide at night when the predator is active. Unless there is another animal that we've not seen, maybe one that comes out of the sea at night?
So far I have been stalked by a razorback in locations close to bristletongue herds, but in the course of observing the herds from a static location for three days or so I've not seen any sign of a razorback, and I've positioned the rover to have a view behind some obvious hiding places. More observation is needed.
btw. the mounds you mention.
There's one by the first artifact. I thought it looked like a grave - especially considering the etching on the white piece - but the story never really went there.
Which artifact did you discover first - the southern obelisk?
I would have liked either to see some of the translation data or to be given enough clues to make a stab at it myself.