The old wrecks

[丂卩ㄩᗪ丨几Ꮆㄒㄖ几]

Wish they kept in some old wrecks you could find or find larger one like massive ships that showed the presence of previous astroneers moving about instead of just disappearing and leaving bases about. plus a more survival feel, like the oxygen generators only filled a limited amount of platforms but something like a greenery hydroponics would provide to more.

[Jonde]

There has to be some balance between adventure and maintenance. Too much later and game starts to be logistical simulator. Well, it is that even now, but within tolerable level.
I have trouble seeing playing based reason for needing to build more oxygenators for some platform limit. Maybe distance from oxygenator would count, but people might like running some very long tether lines at surface. One gets quite far with backpack full of compound to print more tethers, and one extra in printer. Opt to carry medium resource canister will give you even more, much more range.
Least for me, it would be not that exciting thing to set up fourth oxygen station on my way to core, instead of just trying to source some more compound for tethers.