Tenebris, Terra Palus, Realistic Celestial Universe, Tiber, Naufulglebunusilo, 2 Starcraft planets I can't remember the name of, and more I'm not aware of existing.

Not sure if this is the board for it, but a "Planet" tag in the mod search would be really helpful for finding new planets since right now it's pretty difficult.

So maybe allow it to be built on other planets?
Pretty sure the recycler is supposed to be the "Other cool building you want to export that can only be built locally on the planet". Vulcanus has foundry as the main thing and the big mining drill as the other thing. Gleba has the biochamber as the ...