Hi, I've been around the forums for the past couple of months learning most of the ins and outs of the the game and building a base roughly formed after the steam early-mid game guides. Terrific community here, you guys really put a lot of thought into base designs! I think I'm getting close to mid game sustainability and wanted to check my thinking about what is needed to sustain a base, ignoring space for the moment at least.
I'm keeping my population to 8 dups at the moment, though this might increase when I start working with petroleum.
I've mostly switched from mealwood farming to bristle blossom lit by shine bugs. This with eggs and some meat from hatch and drecko farming provides plenty of food, though not the best quality.
I have tapped a cool steam and cool slush geyser to power a SPOM and top off my clean water reserves. A second electrolyte runs occasionally as my base isn't perfectly sealed but I have more than enough water to support this at the moment.
The SPOM seems to provide almost too much cooling with the wheezeworts so I think I'm good here.
SPOM + coal provides my power at the moment. I've dug down to the oil and plan on setting up petroleum/natural gas power next which I think should get my power sustainable.
At this point I think the last resources I have that are not sustained are. 1. Algae, renewable only by pufts I think but also there seem to be plenty of alternatives to algae (ex electrolyzer). 2. Dirt, I think the use for farming is fairly slow so may not be a real issue but it looks like the best very long term option is boiling polluted water. This also provides another clean water source but could be a bit of a power hog depending on implementation. 3. Sand, this I think is the biggest initial issue for dealing with polluted oxygen and water. Could be produced by heating the dirt from boiling polluted water. Though once boiling polluted water is implemented, one main consumer of sand is gone. The last consumer here could be removed by liquefying polluted oxygen and then returning it to gas, or using pufts to consume the polluted oxygen.
Am I missing anything important here or do I understand enough if my intent were to produce a fully sustainable base (once everything is built), without plans of going to space (so long as meteors don't wipe me out anyway)? Next step of course will be getting to space, but I just want to understand and get working a full sustainable approach if I can, then make the switch to space... and probably find out how badly I killed of everything I need to get to space by using it up to make my base sustainable, and restart with a new base. But that is half the fun right?