Love the game. Hundreds of hours into at this point. Great idea (one that I had many years ago, but I don't have the skills to build games, so...)
After playing so much, there are some things that I'd like to see improved upon:
1) World generation. Don't get me wrong, it's really good, as is, but...the real world is rarely so neatly composed. The many different layers often duck into and out of each other, and I think that should be reflected here.
2) The cook book: there isn't one. We should have a recipe book for the cooking tab.
3) As it stands, there are several ways to get different materials, but finding some of them can be a problem. I think that it might be good to include the source blocks from which certain materials can be drilled (e.g. when you drill xxxxx it drops yyyy and yyyy - see also uraninite deposits)
4) Electrodes: These are great and really simulate the reality quite well, but they're very power hungry, if the top is blocked no reaction takes place, and there's no simulation of anode v cathode activity (water when exposed to electrolyzers and electrodes, just produces oxygen and hydrogen willy-nilly) I think this could be improved upon by having positive and negative electrodes, so that hydrogen only forms on one side and oxygen on the other (good for separating gases).
5) Chunk loading. Right now, chunks seem to lose physics as soon as they're out of loading range. I think this should be extended somehow, like maybe a 1 minute timer after they're out of range where the physics keeps going, and then stops (it's a little jarring moving back into physics range and seeing a cloud of gas or a rain of liquid start moving again)
6) Aqueous Solutions: some of them are irreversible. I'm sure this is an oversight.
More to follow. Great game!