You are from a planet, but your characters probably aren't. This makes for a change in view point on some subjects.

Salt Fish, for instance: I've had players expect that was what they were buying when stocking up. Perfectly reasonable for a ship at sea, as most ports would have more access to fish than cow or pig in bulk. It's handy.

But fish in bulk require oceans. Oceans require planets, and I've posted elsewhere the issue with gravity wells. Fish just wouldn't be cost effective.

Asteroids (and I'm assuming Asteroids support most of the Space civilizations) can be planted with grass and have cattle or pigs introduced and raised quite handily. Salt or dried pork or beef is much more likely.

Oh, you could hire some dwarves to hollow out an asteroid, get some ships to tow in ice chunks, and try and make a small lake but it's hardly cost effective.

Also keep in mind that spices generally come from the tropics. There aren't any tropical asteroids, generally speaking (it's a Fantasy game, so nothing is hard and fast). Most are likely so far from the local Fire Body that they are Dim, at best. Salt probably, and basic herbs certainly, but no spices. So if you find them, they've been imported from a gravity well and will be very pricey.
This message was last edited by the GM at 21:28, Sat 29 July 2023.

Asteroids may well have metal and gems, but their supply of food is non existent.

Yes, someone could try and acquire a few hundred (or more) seedlings and plant some an asteroid or two for lumber farming, but it takes years for the trees to grow.

No, finding a smaller planet to buy and import lumber from is the way to go, which is going to have it's own issues, but is faster and cheaper than making forest asteroids.

Still, you never know what a druid might do.

The upshot is that anything made of wood, as well as wood based crafting materials (including lumber) a will cost more in space and might be in limited supply.

Metal and gems should be reasonably normally available, although metal might have a slight mark up as wood is used in forges for heat.

Adamantine, however, is quite rare, even compared to normal. It's formed from meteoric iron, and that requires a planet's atmosphere.

Manning a helm for a shift is pretty much all inclusive. Anything else stops the ship, after all.

No Short Rests.
No meal breaks. (Another crew member can deliver meals, however, for a working lunch)
No bathroom breaks, even.
Nothing that would interrupt Concentration enough to stop a concentration spell.

While you can see and hear all over the ship and air envelop, you can't talk to anyone outside the helm room, not even to tell them you "feel" something odd in the distance.

All in all, this is plenty of reason (to my mind, anyhow) to impose standard Forced March rules, there by limiting a daily Helm shift to 8 hours before exhaustion becomes a factor.

It's also a good reason to always have a second crewman on duty for meals and other emergencies, and a really big bell in the Helm room for alerting folks something is happening that only the Helmsman realizes, thus far.
This message was last edited by the GM at 00:20, Thu 12 Jan 2023.